A disturbed man searches for his missing girlfriend in Baker’s Jekyll-and-Hyde–inspired debut crime novel.

Peter Longer, the son of an abusive preacher, has another personality inside him—one he calls Jason, who tells him to do bad things—and he believes the alter ego to be a result of a family curse. The 49-year-old man also believes that he’ll die at 50, the same age that his father did; a spirit woman known as the Wren, he thinks, will come to punish him for the things he’s done. He was committed to a state institution as a teenager after killing a woman, but he managed to escape and was accepted, under a false name, to Columbia University. Later, he pursued a series of blue-collar jobs out West. Eventually, in Colorado, he strolled into a church on a snowy morning, looking for warmth, and met Sarah Montrose, a friendly young woman with a trust fund. The two fell in love and Peter found himself with a luxury apartment, a job polishing resumes, and a good woman in his life. He was convinced, in fact, that Sarah cured him of his family curse. Then, after two years of happiness, Sarah disappeared in 2016. The cops got involved, but the case quickly went cold, leaving only Peter and Richard Redd, a lone Denver police detective, committed to finding her two years later: “I continued to search for Sarah,” Peter narrates. “For without her, I was doomed. She had protected me from the cruelty, the savagery the bloodline bred into the men who carried the seed.” When Redd comes across a name related to a different murder—someone named Jason Bane—it becomes clear that the story that Peter has been telling himself may not be as straightforward as it seems.

Baker’s prose is taut and plainspoken, with shades of dirty realism that go along with the novel’s general sense of psychological unease. Here, for example, Peter stops at a drug store to tend some wounds before going to meet a single mother whom he thinks might be a suitable replacement for Sarah: “In the rearview mirror, I saw my lip had broken open again….I stopped for gauze, antiseptics, and Band-Aids. A fuzzy pink bunny sat on display at the checkout counter. Perfect for the first gift to a little girl who I hoped would grow to adore me.” The novel is mostly narrated from Peter’s perspective, although the introduction of Redd offers some much-needed respite from the protagonist’s unsettling point of view. The book has a sensationalized view of violence, rural poverty, and mental illness, and readers will be likely to spot the plot’s big twist from miles away. Even so, the mystery that unfolds over the course of the novel is somewhat more nuanced than it initially appears, resulting in a reading experience that’s chock full of reversals and complications. The faint of heart should probably stay away, but fans of dark, cerebral horror tales will likely enjoy unraveling this one.

A devious, if occasionally melodramatic, psychological thriller.