When his Cambridge roommate, the cursed second son of a royal family, is found poisoned on a mysteriously swinging swing, young Sherlock Holmes must race against Christmas to unravel a 200-year-old mystery, all while confronting the shocking return of his long-lost mother and half-brother.

SYNOPSIS:

In the shadow of a centuries-old curse, a young detective uncovers the deadly truth—one swing at a time.