Nightfright

She said, 'Some of the people I call on seem to curl up their toes and pass out just from having one look at me.' She laughed about it and said it was a coincidence.
"The Pale Horse"

Today: a book that is mystery-wise not particularly memorable, but still a book I enjoyed a lot.

The students Mari and Sonoko are driving through a typhoon, on their way to the second house of Minori Kazunori, professor in American literature at their M University. Sonoko has had her eye on the handsome and very rich professor since forever, and the fact he's married, means nothing to her: she plans to have an affair with him, and have him divorce his wife eventually. He's been evading Sonoko's approaches for so long, Mari is rather surprised when this morning, Sonoko calls Mari out of bed with urgent news: apparently, the professor has finally given in to his urges. Professor "Kazu" owns a second house on a mountain on A Plains, near Sonoko's home town, and when she called Kazu this morning, she was told his wife would leave the house for a week later today, and Sonoko could come and stay there. Sonoko has no car of her own, so now she's on the phone to beg for a lift from Mari, who very reluctantly agrees to accompany Sonoko. But not for the reason you'd think: it turns out Mari is having an affair with Kazu for some time now, so why has Kazu now chosen for Sonoko!? Mari agrees to go along with Sonoko (to spring a surprise on Kazu) and together, they hop in Mari's car. When they arrive at the house however, they are surprised by the person answering the door: the young man they don't know seems as surprised as them. He explains he's a student of M University too, and that he was hired to watch the house for a week: he was picked up by the professor's wife earlier today and she drove off again, though she didn't explain where she was going, where the professor was and when she'd be back exactly. Sonoko is baffled, because this wasn't how things were to go: she was going to have her special night with Kazu! But as they are wondering what's going on, more people arrive at the house: first a police detective arrives at the scene, who explains he visited the hotel at the top of the mountain in relation to a case, but on his way back to town, he found the road further down the mountain collapsed due to the typhoon, so now he's stuck. He borrows the phone to call his boss and asks for permission to stay at the hotel back up the mountain, but then a family of three (a couple and the elderly father of the wife) arrive at the house too, who tell them the road further up the mountain, to the hotel has collapsed too. When later the hotel shuttle bus driver arrives at the house too, the party is complete: everyone is stuck in this house until the road's been restored. They divide the rooms among each other (Mari of course sleeps with Sonoko) and after dinner, some of them retreat to their rooms, while others hang out in the living room watching television. However, a very unfortunate chain of incidents leads to.... Mari killing six people one after another in the house. While it was certainly not intended, everyone besides Sonoko ends up killed by Mari (and some in rather gruesome manners). Mari is naturally in complete shock and returns to their room to wake up Sonoko, but it is then Mari discovers... Sonoko has also been murdered! A heavy vase was dropped on her head, and for some reason, her hair had been cut short. While a broken window seems to indicate the murderer came from outside, the fact they're completely shut-off from the outside world, quickly points Mari to one conclusion: one of the six people Mari just killed, must have killed Sonoko earlier! This quickly leads to Mari's one plan for salvation: Mari will make it seem the killer of Sonoko killed Sonoko and the rest, and set things up so it'll appear like then the killer was killed by Mari in self-defence. But in order to do that, Mari must figure out who killed Sonoko in Nishizawa Yasuhiko's Satsui no Tsudou Yoru ("The Night Murderous Intent Gathered", 1996).

I don't always remember where I first learned about a book, but I certainly remember where I first heard about this book: I read this book in August 2024, and a few weeks earlier, the book had been trending on Japanese social media, despite it being a rather old book. The reason is simple: the blurb was just so silly: how does Mari accidentally kill no less than six people!? For that is the honest truth: while Mari in some cases did act in self-defence, most killings were really just... unintended outcomes of sudden movements. The book is actually really funny, even though it is not written in an overt "comedic" manner: the way everything happens is just silly. From Mari "accidentally" doing a multi-kill combo to Sonoko just openly trying to seduce a professor to it turning out that professor is actually having an affair with Mari and Mari constantly bad-mouthing Sonoko both in front of her and behind her back... the characters are over-the-top, and act very comedic, even though the book's tone seems more serious.

The "intention" to be serious can also be seen in a secondary storyline, which follows the police detective Mimoro Katsuya (a co-worker of the police detective who ends up at the house): he's been working on the case of a killer with necrophilic tendencies who's been killing attractive women. During his investigation, he interviewed Kose Tomoe, and the woman has been on his mind since then. After some drinking in the earliest hours of the morning (on the same day as the main plot), he ends up in front of her apartment building and makes his way to her room; an impulse he knows is wrong, but he can't help it. He finds her door not locked and sneaks inside, only to see Kose having sex with a man... but then the man strangles her to death. Mimoro doesn't know what to do: while he wants to help her, he also knows that there's no way he can explain how he came here, sneaking like a stalker into the apartment of a woman he only interviewed once. He flees and several hours later, he's called by his boss who informs him of the murder, but to his great surprise, there's another dead woman lying in the apartment now, and the scene is set to make it appear like that woman killed Tomoe and then committed suicide. Mimoro is the only one who knows that isn't the truth, but can't of course explain he was actually witness to the murder. He tries to find out who the man was who killed Tomoe, which brings him on a curious trail that leads him to a house on the mountains in A Plain....

So the second storyline involves a serial killer of women, and we hear about some other odd cases that have been going on in the region, like a killer of children. In general, these chapters are a bit shorter, and feature a very flawed narrator: Mimoro clearly has stalkery tendencies and is even jealous of the man who killed Tomoe, as he felt somehow disgusted and disillusioned with Tomoe when he saw her having sex with another man. Despite that, he's still trying to do his job and find the killer, and part of the mystery of course revolves around finding out how this plotline relates to the story set at the mountain villa of professor "Kazu".

As you can guess, Satsui no Tsudou Yoru reads more like a thriller than a pure puzzler, though Mari does show off some not particularly memorable, but at the very least, still "logic-based" deductions regarding who could've killed Sonoko (with Mari's own killing spree functioning as an important event to determine where everybody was at a certain time). Ultimately though, this is not a fair-play whodunnit, and a lot of the mystery revolves just around seeing how we learn how several strands of plotlines turn out to be connected by... sheer coincidence. Coincidence is a strange thing in mystery fiction (ha! See this review for example), but as this book is just a thriller, I didn't mind the humongous pile of coincidences at work here: the result is just something so silly, it becomes good. I do like the ultimate manner in which the two plotlines of Mari in the house and the investigation of Mimoro connect, as that was the one thing I really didn't see coming, and there were other interesting hidden parts of the mystery that made an impression on me as they were revealed, and while I doubt many readers would actually have been capable of deducing those parts based on the clues, I can't help but admit Satsui no Tsudou Yoru was just hugely entertaining in its... unreserved manner to present such a ridiculous story, with a straight face.

It's funny though... Nishizawa Yasuhiko is best known for his mysteries with a supernatural setting, from people stuck in timeloops to supernatural abilities to push people to think. This is the first time I read a book by him that does not feature a supernatural/sci-fi element and in a way, it ends up the least realistic one because it's so deliciously silly.

Satsui no Tsudou Yoru is no masterpiece or a must-read by any means, but I did enjoy it immensely because of how ludicrous it could be. The concept of Mari just accidentally doing a multi-combo kill spree is funny on its own, and the thriller Nishizawa writes around that is entertaining enough to keep you hooked for the short, but sweet experience.

Original Japanese title(s): 西澤保彦『殺意が集う夜』