This was fun! It's s very deadpan thriller, told by a young nurse who's always stuck cleaning up after her homicidal sister. Ayoola is so insanely beautiful that no one would ever really believe Korede if she tried to turn her little sister in, but... she doesn't really want to. I mean, she's irritated by all the drama Ayoola brings to her life, but I can't help but think if she were that irritated she would have done something about it, because (it has to be said) Korede is enormously competent and probably could have figured out a plausible way to implicate her sister if she had to. But as the story goes on, and the cover-ups become more elaborate, and as a man that Korede actually likes falls into her sister's clutches, Korede starts to wonder if she's really doing what's best after all. 

Ayoola is entertaining, but it's Korede's own ambiguity that's the most compelling part of this for me. She's very sympathetic, but the late reveal regarding what happened to the girls' father indicates aspects of Korede's character that are not quite surprising, perhaps, given the choices that she continues to make. The character work is very well done, anyway, and the whole is enormously entertaining.

I might give a copy to my own sister, come her birthday this year. I think she'd appreciate it.