Nico Enma is starting her last year of high school. She has many problems to deal with, an eccentric grandmother, a mother who she doesn't ever agree with, and being an outcast at her school. Detective Mors has his own troubles dealing with a new assistant trying to rise in the ranks and tracking down a brutal killer. One day changes the situation for both of them and they are forced to deal with each other's problems. Mors's soul has become attached to Nico's body, but how this happened they aren't sure. As they try to find the answers, they deal with old problems. However, new troubles arise that they never knew as they discover the world of the undead that is hidden within the living. Will they catch the killer or will the killer catch them? As they try not to drive each other crazy, they track down the murderer, deal with new relationships, maintain current ones with family and friends, and try to survive.