Happy birthday to you... now die. Someone is on a murder spree and it's up to Chief George Martin's team to find out who. The murders, which have taken place on the victims' birthdays, have occurred in not just Jacksonville, but also Orlando, and as far away as Asheville. Even when the team finds them, the clues don't seem to lead anywhere, especially when everyone seems to have an alibi. Eleven people have died, and the race is on to catch the killer before he strikes again.