First Born is another fantastic book by Will Dean. I've read everything that he published and I felt this one was a bit different, it didn't have the same darkness as the previous ones, and saying that, it was similarly brilliant. 

Molly and KT are twins, but they couldn't be more different. One is adventurous and brave, the other worries about everything. KT decides to move to New York and Molly can't forgive her the abandonment. Their relationship is strained and they're not that close anymore... and that's when KT is murdered, all alone in her apartment on the other side of the world... 

Molly decides to conquer her fear and flies to America, so that she can find the killer, help the police and support her parents. 
There are many secrets in KT's life, how she got University sponsorship, what kind of people she's friends with and maybe her life isn't what it seems... 

The police doesn't seem to be making progress, the private detective approaches Molly and they're determined to solve the case. 

Slow burning story, which makes you read until you finished the book. Sit comfortably, because you won't be able to do anything for a few hours! 

Great thriller by a great author!