After his fathers death a young man Gregor Bakovic uses the black mourning flag and sews himself a pair of trousers He then takes a train trip and meets a variety of bizarre characters including a stowaway a deafmute duo a balloonseller a bird enthusiast and an attractive girl Barbara Cerar Their railway romance gets derailed but a variety of sight gags and caboose comedics keep the film on track and in loco motion