Writer Kenneth Magee has bet that he can finish a story at rural resort Baldpate Inn, now closed for the winter. The owner has given him the "only" key to the front door. But there are six other keys, and peculiar characters, some of them up to no good, keep turning up as the mystery deepens.
Phillip Terry
as Kenneth Magee
Jacqueline White
as Mary Jordan
Eduardo Ciannelli
as Cargan
Margaret Lindsay
as Connie Lane
Arthur Shields
as Prof. Bolton
Jimmy Conlin
as Pete the Hermit
Tom Keene
as Steve Bland
Jason Robards Sr.
as Hayden
Tony Barrett
as Max Rogers