When a murder happens with a bloody inscription and a ring left behind, puzzled Scotland Yard detectives go to Sherlock Holmes for help.
A Polish teacher moves to a provincial town and gets involved in investigating the brutal murder of a high school girl. He learns more and more about the mysteries of this murder, revealing corruption and fraud among local elites.
Seeking a greater justice, a band of homeless assassins flays their human targets and delivers the tattooed skins as proof of a contract fulfilled.
Accompanied by his assistant, a criminal psychologist investigates the disappearances of a string of teenagers.