A former police detective turned private investigator is approached by two elderly sisters, who say that someone is terrorising them, but it turns out that the man they believe is responsible is long since dead.

Two teachers, man-hungry Doris and restrained Marian, visit the Yorkshire moors a year after friend Evelyn disappeared there. On a stormy night, they take refuge in the isolated cottage of Stephen, one-time pianist shell-shocked in the Spanish Civil War. Doris flees as soon as the flood subsides; but Marian's suspicions about Evelyn's fate, in conflict with her growing love for Stephen, prompt her to stay on among the misty bogs.

Wealthy Nicky finds himself engaged to gold-digger Lady Constance, but he really loves scatty model Diana. Complications, slapstick and mountaineering are the result.