When composer George Harvey Bone wakes with no memory of the previous night and a bloody knife in his pocket, he worries that he has committed a crime. On the advice of Dr. Middleton, Bone agrees to relax, going to a music performance by singer Netta Longdon. Riveted by Netta, Bone agrees to write songs for her rather than his own concerto. However, Bone soon grows jealous of Netta and worries about controlling himself during his spells.
Laird Cregar
as George Harvey Bone
Linda Darnell
as Netta Longdon
George Sanders
as Dr. Allan Middleton
Glenn Langan
as Eddie Carstairs
Faye Marlowe
as Barbara Chapman
Alan Napier
as Sir Henry Chapman
J.W. Austin
as Det. Insp. King (uncredited)
Ted Billings
as Pub Patron (uncredited)
Clifford Brooke
as Night Watchman in Square
Ann Codee
as Netta's Maid Yvette (uncredited)
Charles Coleman
as Man at Bonfire (uncredited)
Michael Dyne
as Mickey (uncredited)
