Picture Perfect

'The man reached the solid brown wood door and stopped. Written in glow-in-the-dark paint on his front door were four words:
WE ARE STILL WATCHING
Cole took a second to digest this before inserting and turning the key in the lock.'
After a horrific car crash in which he loses his wife and daughter, Detective Cole Webster is devoid of feeling and devotes himself to his work.
While investigating a series of gruesome murders, Cole receives contact from the killer in the form of pictures, a diary entry and directions to an abandoned motel where he once stayed with his wife.
Further communication leads him on a sinister and dangerous personal journey, forcing him to confront his past and question everything.