Fragments from the film "The Adventure of Mrs. Shelton" with the participation of actors Valentina Illarionovna Talyzina (Mrs. Helen Shelton) and Gennady Leonidovich Bortnikov (Mr. John Itting). The action takes place on a Soviet motor ship, hired by an English travel company for sailing around the world. Mrs. Shelton, having learned that her husband is cheating on her, goes on a cruise to survive the tragedy alone. But on the way, many adventures await her, as a result she finds new happiness and new love.