Haide Göranson

Sture and Birgit are secretly engaged. One day when they are kissing, they are discovered by Sture's father Dana. However, he promises not to reveal anything, as Sture would probably lose his job on Birgit's father Hjalle's shipyard. When Hjalle is forced by a usurer to pay back 23,000 on a loan, he gets problem. Dana promises to solve the problem, the question is just how. There is only one person that could help him, his childhood friend Gösta Hägg that nowadays is the director of a big company. But time passes quickly, and where is Mr. Hägg ...?

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...