On a train headed for England a group of travelers is delayed by an avalanche. Holed up in a hotel in a fictional European country, young Iris befriends elderly Miss Froy. When the train resumes, Iris suffers a bout of unconsciousness and wakes to find the old woman has disappeared. The other passengers ominously deny Miss Froy ever existed, so Iris begins to investigate with another traveler and, as the pair sleuth, romantic sparks fly.

A film actress is murdered by her estranged husband who is jealous of all her young boyfriends. The next day, writer Robert Tisdall (who happens to be one such boyfriend) discovers her body on the beach. He runs to call the police, however, two witnesses think that he is the escaping murderer. Robert is arrested, but owing to a mix up at the courthouse, he escapes and goes on the run with a police constable's daughter Erica, determined to prove his innocence. Written by Col Needham col@imdb.com