Guests at an old English manor house are stalked by a mysterious killer known only as "The Terror".
May McAvoy
Olga Redmayne
Louise Fazenda
Mrs. Elvery
Edward Everett Horton
Ferdinand Fane
Alec B. Francis
Dr. Redmayne
Matthew Betz
Joe Connors
Holmes Herbert
Goodman
Otto Hoffman
Soapy Marks
Joseph W. Girard
Supt. Hallick
John Miljan
Alfred Katman
Frank Austin
Cotton
Conrad Nagel
Credits Narrator (voice) (uncredited)
