Ingrid Eriksson, a social worker, decides to find out something about the problems facing housemaids and gets herself a job as one at the home of John Willman's family. John's son, Åke, falls in love with her and numerous complications arise before the course of true love runs smoothly.
A ring passes between a lot of different people, giving the bearer or someone close a new meaning to life. Actors, embezzlers, old ladies and cheated husbands all seem to gain temporary hope from misery and disillusionment.
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... Plot by Mattias Thuresson
