It’s not even being released until later this year, but Oyinkan Braithwaite’s My Sister, the Serial Killer has already been optioned for a feature adaptation, Deadline reports.

The site notes that UK’s Working Title has optioned the novel, which “follows a Nigerian woman whose younger sister has an inconvenient habit of killing her boyfriends.”

Deadline adds, “The darkly comedic story, buzzed-about in publishing circles, was previously snapped up by U.S. publisher Doubleday as part of a significant five-figure advance and is set to hit shelves stateside later this year.”

Working Title will produce with Big Talk’s Nira Park and Rachael Prior.