An elderly and retired police detective and a young amateur sleuth team up to find a serial killer whom has resumed a killing spree in Turin, Italy after a 17-year hiatus.
Sleepless is a 2001 Italian giallo film directed by Dario Argento. The film stars Max von Sydow and Stefano Dionisi and marks Argento's return to the giallo subgenre. The film was another box office success when it opened in Italy, taking in over 5,019,733,505 lira by the end of its theatrical run.