When killers are driven by jealousy, rage and desire, their desperation is evident in both the crime and their efforts to cover their tracks. But forensic science can reveal even the smallest mistake to solve these crimes of passion.
Nogle mordere dræber for penge, andre for at dominere, men når et motiv er uklart, må politiet benytte sig af retsvidenskaben for at søge efter spor i et offers fortid.
