Alligator – former blues singer ex-convict now a private detective – finds himself pulled into a dark and unsettling case that uncovers an Italy known to very few.

When Helena Giraldi is abducted her husband approaches Alligator and his friends for help. Helena and Mariano lead a secret double life involving Italy’s clandestine SandM scene. But Mariano seems more worried about losing his job and reputation than about seeing his wife again.

As Alligator begins to investigate he uncovers a secretive and dangerous world in which brutality duplicity and passion go hand in hand. Behind Helena’s abduction is a shadowy figure known as The Master of Knots – who proves to be as powerful as he is psychotic. As more members of the underground scene start to disappear Alligator finds himself in a desperate race against time to reveal the true identity of The Master of Knots. The search leads him into a world where truth is an elusive concept where no one is who they seem to be – and where the line between pleasure and pain simply doesn’t exist.