An illegal immigrant witnesses the murder of a co-worker who was threatening to expose the illegal activities of crooked Immigration officials, and is forced to hide out in fear as she too is now hunted by the killer. The Detective duo step in to investigate and uncover an illegal-alien smuggling operation...

A calculating criminal bumps off a loan-shark's collector and takes over the role, collecting debts for the head of the money-loaning racket – a washed-up former child star. The Detective pals investigate, only for it to turn out that the father of Hutch's girl-friend is one of the people owing money to the crooked racket, and that the vicious new collector is actually a notorious killer with an ulterior motive...

Investigating a series of immaculately executed murders, the case leads Hutch back to school as a college student, to get the low-down on a brilliant college professor who teaches a senior student course on the ""philosophy of crime"" and specialises in murder...