Set in Japan, during the initial COVID outbreak, we follow a woman who hires a handyman to unblock her drains. They are both haunted by incidents that happened earlier in their lives, and through a series of events, he ends up residing in her house and essentially acting as her security guard.
There is a feeling of unease and claustrophobia that escalates the longer they live together which I found effective. I think if I were to have an issue with the book it was that I felt fairly disconnected from the characters, but nevertheless I enjoyed it.