My Sister, the Serial Killer | book review

Korede answers her phone and hears those four words she'd hoped she'd never hear again: Korede, I killed him. This marks the third time Korede's younger sister, Ayoola, has killed a man in "self-defense," so she claims. Korede isn't sure she believes this or not, but she loves her sister fiercely and will do anything to protect her. But when Ayoola starts . . .