Ernesto Colli

When the death of a surprisingly rich railroad worker leads to mysterious murders within his heirs, Inspector Greville is called in to investigate.

A string of appalling lust murders shocks the University of Perugia as a sadistic serial killer strangles to death beautiful college girls with a red and black scarf.

An undercover cop deliberately gets incarcerated to infiltrate a notorious gang, using the mission as a cover to exact personal revenge.