My Sister, the Serial Killer Book Cover
My Sister, the Serial Killer Thriller/Mystery 226 pages Goodreads


When Korede’s dinner is interrupted one night by a distress call from her sister, Ayoola, she knows what’s expected of her: bleach, rubber gloves, nerves of steel and a strong stomach. This’ll be the third boyfriend Ayoola’s dispatched in, quote, self-defence and the third mess that her lethal little sibling has left Korede to clear away. She should probably go to the police for the good of the menfolk of Nigeria, but she loves her sister and, as they say, family always comes first. Until, that is, Ayoola starts dating the doctor where Korede works as a nurse. Korede’s long been in love with him, and isn’t prepared to see him wind up with a knife in his back: but to save one would mean sacrificing the other…


This book starts off when the main character’s sister calls her to say that she might’ve or not just killed her boyfriend. Also, this is the third time. She’s killed three of her boyfriends. Here I am hoping that someone will finally be my boyfriend and homegirl is our here killing her own. 

Korede does love her sister so she doesn’t really want to go to the police. They have really interesting dynamics going on. 

We only have one POV which is Korede, she’s a nurse, she’s hardworking, reliable person who literally has to put up with the fact that her sister Ayoola is a serial killer. I love how Ayoola always has Korede dispose of the bodies. Like, just do it yourself if you’ve killed someone, jeez. No, I’m just kidding, I mean it’s weird! 

Anyway, things get even more complicated when Ayoola sets her eyes on the hot dude Korede has been secretly in love with. The dude immediately is bewitched by her, dudes usually seem the love her.

So, it’s weird because Korede loves her sister, but her sister is a freaking serial killer who wants to murder the guy she’s in love with. Talk about drama. 

I did not like this book. But first let’s go through what I liked. I really enjoyed the fact that this book has literally tiny chapters, consisting of a couple pages, you can fly through the book thanks to that in a couple of hours, so I definitely enjoyed that. 

I really liked the little glimpses of her father, he’s a really messed up dude. 

Now, there are a ton of things I didn’t enjoy whatsoever about this book. The writing style was simplistic, not gripping at all, it lacks depth and just… boring. I’m sorry, this is the way I see it. 

I found Ayoola to be so annoying and just… a bad character. Yeah, a serial killer is supposed to be bad, but she’s so childish, spoilt and a total moron. She treats Korede like I’d treat hitler. She’s mean to her, keeps saying shitty things behind her back but Korede still loves her which blows my mind and is kind of unbelievable. If someone treats you like trash I don’t suppose you’ll continue loving the heck out of them. or maybe that’s just me. 

Not one of the characters are actually okay. Korede is an idiot, so is her mother who doesn’t notice what’s going on in front of her nose, all of the men suck: they fall at Ayoola’s feet so quick, it’s literally unbelievable. 

So, this book wasn’t written for me, but whatever I can’t like all the books, but give it a try, you might like it.

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10 thoughts on “My Sister, the Serial Killer by Oyinkan Braithwaite

  1. I ended up giving it three stars but you brought up some valid points, there were parts that sucked so much, I might lower it to 2 stars. Thanks for your review!

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