When private detective Bob Martin looking for a stolen diamond necklace, he also has a clever serial killer on the trail ...
as Bob Martin
as Francesco di Villaverde
as Ellen Kent
as Peppe Mangano
as Charly Hollmann
as Armando Locatelli
as Riccardo
as Angela
as Lois Simmons
as Lionel Simmons
as Rinaldo
as Berry
as Maria di Villaverde
as Sophia Ferretti
as "der Professor"
as Babsie
as Charly's Henchman
as (credit only)
