The Patient in Room 18 backdrop
COMEDY . 1938 . 0h 57m . 4.5/10

The Patient in Room 18_

"$100,000 worth of radium vanishes...three men are mysteriously killed...a corpse comes back from the dead...and it's only the beginning folks, only the beginning!"

Choreographer Bob Connolly and prolific screenwriter Crane Wilbur teamed up on the direction of Warner Bros.' The Patient in Room 18. Patric Knowles delivers a delightfully comic performance as Lance, an outwardly normal young man obsessed with detective stories. When his obsession threatens to lapse over into lunacy, Lance is sent to the hospital for a nice long rest. It isn't long before he gets mixed up in a genuine murder mystery, using his second-hand knowhow to solve the case. Up-and-coming Ann Sheridan is quite amusing as Lance's nurse and confidante, while the murderer is played by a fellow who is usually cast as the murder victim.

Starring Patric Knowles, Ann Sheridan, Eric Stanley
4.5/10
Rating
0h 57m
Runtime
1938
Year
Updated Feb 16, 2026
The Patient in Room 18 poster
$100,000 worth of radium vanishes...three men are mysteriously killed...a corpse comes back from the dead...and it's only the beginning folks, only the beginning!

Choreographer Bob Connolly and prolific screenwriter Crane Wilbur teamed up on the direction of Warner Bros.' The Patient in Room 18. Patric Knowles delivers a delightfully comic performance as Lance, an outwardly normal young man obsessed with detective stories. When his obsession threatens to lapse over into lunacy, Lance is sent to the hospital for a nice long rest. It isn't long before he gets mixed up in a genuine murder mystery, using his second-hand knowhow to solve the case. Up-and-coming Ann Sheridan is quite amusing as Lance's nurse and confidante, while the murderer is played by a fellow who is usually cast as the murder victim.

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Cast
Patric Knowles stars as Lance O'Leary in The Patient in Room 18.
Patric Knowles →
Year context
The Patient in Room 18 was released 88 years ago in 1938.
Overview
Choreographer Bob Connolly and prolific screenwriter Crane Wilbur teamed up on the direction of Warner Bros.' The Patient in Room 18. Patric Knowles delivers...
The Patient in Room 18 is a Comedy, Crime, Mystery film with a runtime of 0h 57m.

CAST (20)

Patric Knowles
Patric Knowles
Lance O'Leary
Ann Sheridan
Ann Sheridan
Sara Keate
ES
Eric Stanley
Bentley
John Ridgely
John Ridgely
Jim Warren
Rosella Towne
Rosella Towne
Maida Day
JB
Jean Benedict
Carol Lethany
Charles Trowbridge
Charles Trowbridge
Dr. Bahman
Cliff Clark
Cliff Clark
Inspector Foley
Harland Tucker
Harland Tucker
Dr. Arthur Lethany
Edward Raquello
Edward Raquello
Dr. Fred Harker
Vickie Lester
Vickie Lester
Nurse Taylor
Edward McWade
Edward McWade
Frank Warren
Ralph Sanford
Ralph Sanford
Detective Donahue
Frank Orth
Frank Orth
Joe Higgins - Night Watchman
Greta Meyer
Greta Meyer
Hilda - Lethany Housekeeper
WY
Walter Young
Coroner
Glen Cavender
Glen Cavender
Man with Sprinkler Hose (uncredited)
LC
Loia Cheaney
Jean the Night Nurse (uncredited)
MD
Mary Doyle
Nurse (uncredited)
Ralph Dunn
Ralph Dunn
Eldar Hotel Clerk (uncredited)

DETAILS

Release
Status
Released
Runtime
57 min (0h 57m)
Country
Rating
4.5/10 (7 votes)

FREQUENTLY ASKED QUESTIONS

What is The Patient in Room 18 about?
Choreographer Bob Connolly and prolific screenwriter Crane Wilbur teamed up on the direction of Warner Bros.' The Patient in Room 18. Patric Knowles delivers a delightfully comic performance as Lance, an outwardly normal young man obsessed with detective stories. When his obsession threatens to lapse over into lunacy, Lance is sent to the hospital for a nice long rest. It isn't long before he gets mixed up in a genuine murder mystery, using his second-hand knowhow to solve the case. Up-and-coming Ann Sheridan is quite amusing as Lance's nurse and confidante, while the murderer is played by a fellow who is usually cast as the murder victim.
How long is The Patient in Room 18?
The Patient in Room 18 has a runtime of 57 minutes (0h 57m).
Who stars in The Patient in Room 18?
The cast of The Patient in Room 18 includes Patric Knowles, Ann Sheridan, Eric Stanley, John Ridgely, Rosella Towne.
What is the rating of The Patient in Room 18?
The Patient in Room 18 has a rating of 4.5 out of 10 based on 7 votes on TMDB.

GENRES (4)

Comedy Crime Mystery Romance
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