When the Baxter Family relocates from sunny California to Maine, 8-year-old Finn Baxter is convinced the new house is haunted by notorious gangster/bootlegger, Jimmy "Deadleg" Gravano, who passed away inside the residence while being asphyxiated in his own bed. Terrified and stricken, Finn decides to set up traps to capture this "christmas spirit," which prove to be useful against three bumbling art thieves (Malcolm McDowell, Debi Mazar, Eddie Steeples) who target the household in search of a highly valuable painting previously owned by Gravano. Now home alone with his sister (Jodelle Ferland) while his parents are stranded across town attending a holiday party, can Finn acquire the courage to protect his sister and domicile while matching wits with a trio of determined thieves?