Trap

In Philadelphia, the fireman and family man Cooper goes with his daughter Riley to the concert of the pop star Lady Raven in an arena. Ariel is a great student and has had three A's and one B at school and he wants to reward her. Soon Cooper notes the movement of several police officers in the arena and the salesman Jamie that he has just befriended tells him that the police know that the notorious serial-killer "The Butcher" is in the concert. Further, there are 3,000 police officers and the arena is under siege. Cooper is "The Butcher" and spends the concert trying to find a way to leave the arena. Riley finds the behavior of her father weird, but she does not suspect anything. But soon Cooper finds a way to leave the arena with Riley without raising any suspect from the FBI and the police officers.