My Sister, the Serial Killer

Just disturbing enough to be intriguing without being too relentlessly dark. The characters are richly drawn and weirdly sympathetic, and the setting is really interesting - the titular sisters are from a once-wealthy family in Lagos, now running lower on funds, but still living in their fancy (if rundown) compound and still experiencing echoes of their former life when their father was alive.

I actually listened to the Audible version, and I wasn't thrilled with the reader. Despite her facility with accents and dialects, she winds up choosing weird, jarring emphasis and pacing often enough that it was distracting.