Kollektionen (1962)

One evening while at home Harry and Bill, a dress designer, receive an unsettling anonymous phone call, which is to be followed by a further unsettling visit from a man who will refuse to leave his name. Following some apparently trivial conversation between Stella, another dress designer, and James, her husband and business partner, that occurs in his flat, James has left it to call on Bill at Harry's house, revealing that he was the anonymous caller and is the unexpected visitor.