3.3 5 31,663

Mystery Inc. must save Coolsville from an attack of past unmasked monsters brought to life by an evil masked figure trying to "unmask" the gang.

When Mystery, Inc. are guests of honor at the grand opening of the Coolsville Museum of Criminology, a masked villain shows up and creates havoc before stealing the costumes of the gang's most notorious villains: Black Knight Ghost, Pterodactyl Ghost and Tar Monster. Could it be that their nemesis, mad scientist Jonathan Jacobo has returned and is trying to recreate their deadliest foes? Velma has a crush on the hunk / museum curator Patrick Wisely but why is he acting so suspicious? The Mystery Gang is hard pressed to succeed this time, since pesky TV reporter Heather Jasper-Howe insists they are buffoons.

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IMDB Score
4.9/10
Rotten Tomatoes Score
21%