Based on

Movies like Ein Mann wie eine Waffe (1999)

Criminal psychologist David Bornett is investigating a series of murders in which a police pen is stuck in the victim's ear. The team includes his godson Michael, who is new to the police force, and his colleague Max. Bornett suspects the murderer is among his own ranks and informs Michael. While David's trail leads to Max, Michael's leads lead directly to his uncle David.