"Bulldog" Drummond is vacationing in his country home in England, and his house if rifled by two thieves. After they leave he finds a card marked with some mysterious letters. Doris Meredith comes by the next day, pretending her car has broken down. Drummond knows better but plays along with her. Drummond calls Scotland Yard Inspector Holmes, and is informed that some of the letters comprise the code-name for a Yard-man who disappeared while carrying some diamonds from France to England. Doris tells Drummond the man is her brother. Drummond uses a decoy to lure the thieves out of hiding, but they adduct Doris.

Gaslight
1944
7.5/10

Scooby-Doo! Stage Fright
2013
7.5/10

Scooby-Doo! Mask of the Blue Falcon
2012
7.6/10

Abigail
2019
6.1/10

Scooby-Doo! Curse of the Lake Monster
2010
6.2/10

Song of the Thin Man
1947
6.7/10

Shadow of the Thin Man
1941
7.0/10

Fallen Angel
1945
6.6/10

Scooby-Doo! and the Curse of the 13th Ghost
2019
7.8/10

Scooby-Doo! Music of the Vampire
2012
7.6/10

Nancy Drew and the Hidden Staircase
2019
6.3/10

Scooby-Doo! Return to Zombie Island
2019
7.0/10

Tomorrowland
2015
6.3/10

Benji
2018
6.9/10

Another Thin Man
1939
7.1/10

Baby's Day Out
1994
6.4/10

Scooby-Doo! and the Loch Ness Monster
2004
7.3/10

Ace Ventura: When Nature Calls
1995
6.3/10

The Great Muppet Caper
1981
6.9/10

An American Tail: The Mystery of the Night Monster
1999
6.3/10
Lady in the Fog
1952
6.5/10