heads for Quebec City to investigate sabotage on the set of the romantic TV thriller Dangerous Loves. But the action behind the scenes is far more chilling than anything on camera. Somebody is secretly determined to turn the film into a flop. The movie's title adds an ominous twist to the case when Bess falls for its very attractive star -- one of Nancy's prime suspects! Meanwhile . . . FRANK and JOE HARDY are also in Quebec for the Winter Carnival's spectacular auto ice-racing event. But they soon find themselves in a race of their own -- to catch a murderer! Racing champion Andre Junot has turned up dead. At the same time a photographer from the movie set has turned up missing. Nancy, Frank, and Joe form a single resolution: infiltrate the criminal conspiracy...