
A young prostitute, Gullan Svan, is murdered one night. The police suspects that the murderer is a student, since she had a lot of students as customers. The murderer stole a picture of Gullan after he killed her, a picture which later is found in a rented tuxedo when the tuxedo is returned. Four students decide to solve the case, but it seems that the truth is even closer than they first suspected...

as Bo Hagberg

as Torsten Hertgren

as Robert Croona

as Gustaf Eriksson

as Kalle Larsson

as Berit Lange

as The Soap Girl

as Maud

as Heliga Birgitta

as Pettersson

as Gullan Svan

as Criminal Detective

as Nilheim

as Professor of Anatomy

as Österholm

as Customer in Barber Shop

as Antique Dealer Bladh

as Criminal Assistant (uncredited)

as Dr. Berg (uncredited)

as Singing Servant at Flustret (uncredited)

as Sister Vendela (uncredited)

as Teacher (uncredited)

as Kalle's Date (uncredited)

as Cathedral Janitor (uncredited)