So basically name a content warning and it's in this dark, tense thriller from Alice Feeney. It's entirely different from her more recent books in my opinion, much more disturbing and more tension throughout. I had a great time reading this one and it reminded me of His & Hers in some ways. 

However, the ending was very yucky and there was enough fat phobia in this one that I had to bump it down from the 5 star read that it otherwise was.