In her debut novel, Nigerian author Oyinkan Braithwaite delivers a thriller that blends dark humor with a chilling exploration of sibling dynamics and moral ambiguity. The story follows two sisters, Korede and Ayoola, whose close relationship is complicated by a series of violent incidents. Ayoola, striking and possibly sociopathic, has a habit of killing her boyfriends under circumstances she insists are self-defense. Korede, who works as a nurse, is less convinced by these claims but consistently aids her younger sister in covering up the crimes.

The novel departs from conventional thriller conventions by infusing moments of levity amid the tension and body count. Braithwaite’s narrative probes the complexities of loyalty and protection within a family, set against the backdrop of Nigerian society. The conflict intensifies when Ayoola sets her sights on a doctor Korede admires, forcing the nurse to confront the moral cost of her continued complicity.

Critics have noted the novel's unique tone, which interweaves dark comedy with suspense, and its nuanced portrayal of morally conflicted characters. The book adds a fresh voice to the thriller genre, demonstrating that narratives centered on violence do not always need to be grim to resonate deeply.

Readers who appreciated this work may find similarly engaging themes in titles such as "Butter" by Asako Yuzuki, "Out" by Natsuo Kirino, and "The Man in My Basement" by Walter Mosley.