Andy has a sweet Catholic mother, a sour Catholic father and a severely retarded younger brother named Mickey. When he brings his Jewish atheist fiance' to meet the folks on Christmas Eve, his worst fears about family blow ups are realized. But Mickey, whose entire vocabulary is "oh boy" and "wow," suddenly says "Greetings!" An ancient, wise and witty spirit who is set upon healing the family has borrowed Mickey's body! Fun for the entire family!!