
When the body of a professor and family man is discovered in the office of a used car dealership, Detective Postiglione solves the puzzle after recalling a specific clue that gave the killer he spots the killers window of opportunity.
The crime scene of a double murder shows evidence of conflicting motives. But an unlikely clue on the living room floor helps Detective Postiglione zero in on what really happened, leading to the arrest of an unassuming killer.