As the self-confessed No 1 fan of Tammy Cohen when I saw she had a new psychological thriller out in July I was very excited and when the publishers sent me a proof copy I did squeal a lot.

This psychological thriller is set in a mental institution and once again the author introduces a twisty, twisted set of characters, that get under your skin and keep you on the edge of your toes.

Alternating narrators bring this dark and clever thriller to life and the author has a wonderful knack of leading you in one direction, slamming on the brakes, causing severe whiplash and doing a three-point turn. It’s a fast-paced and fabulous thriller and Tammy Cohen proves why she is one of the best authors of psychological thrillers around. Highly recommended.