The plot takes place on a mansion owned by the new widow Birgitta von Carping (Berit Carlberg). Sten Stensson Steen (Nils Poppe) has rented a room in the manor. He accidentally arrives a month early and the carousel is in full swing.
A traveling theatre company comes to Lund and one of the smallest hotels in town. A female actress gets a key by mistake to a room where Sten Stensson Stéen lives.
