Kind and decent professor Artur Čejka is about to marry his fiancée Helena Frýdlová. On the eve of the wedding, he comes across the unfortunate actress Káťa Holanová on the riverbank, who has been unsuccessfully looking for an engagement for a long time and wants to take her own life out of desperation. Čejka prevents her from committing suicide and helps her. He meets the girl again on the train when he and Helena are going on their honeymoon...