A brilliant high-concept debut thriller - just how do you solve a murder when you only remember yesterday?


'The thriller of the summer' - Observer

'Yap is a phenomenon' - Guardian

'The intrigue of Gone Girl and the drama of Before I Go to Sleep' - iNews

'So hotly tipped it should come with scorch marks... Quite literally mind-bending' - Red


Today, the police are at your door.

They say that the body of your husband's mistress has been found in the River Cam. They think your husband killed her two days ago.

You can't recall what he did that day, because you only remember yesterday.

You rely on your diary to tell you where you've been, who you love and what you've done.

So, can you trust the police?
Can you trust your husband?
Can you trust yourself?

"Yap is a phenomenon" - Guardian

"The thriller of the summer" - Observer

"A 2017 literary event" - Newsweek

"So hotly tipped it should come with scorch marks... Quite literally mind-bending'" - Red

"The intrigue of Gone Girl and the drama of Before I Go to Sleep" - iNews

"The One That Everyone Is Talking About ... Enthralling high-concept psychological thriller... A clever revenge tale with a twist." - Woman & Home

"A thrilling new voice... Yap's debut will have you gripped all holiday long" - Red

"With the tone of many Gone Girl-esque thrillers, surplus red herrings and a blockbuster worthy twist, Yesterday is the perfect holiday read... In a year where there has been no shortage of hotly anticipated psychological thrillers Yesterday stands out from the crowd... an intriguing page-turner" - Stylist