Agnes, a scientist, has got her life under control. Her career, her research work and her intact family life are all perfectly organized. But one day her sister Karola suddenly decides to go away and hands a surprised Agnes the keys to an apartment where she is to look after the plants. The apartment looks as if it has been left in a hurry and, for some strange reason, Agnes feels mysteriously drawn towards it. She gradually takes over the place as if it were her own until she makes a discovery – the apartment belongs to a married couple. The wife died in an accident on the way to her lover. Bruno, the widower, must have simply abandoned the flat…