The Ruling Class

A member of the House of Lords dies, leaving his estate to his son. Unfortunately, his son thinks he is Jesus Christ. The other, somewhat more respectable, members of their family plot to steal the estate from him. Murder and mayhem
When the Earl of Gurney dies in a cross-dressing accident, his schizophrenic son, Jack, inherits the Gurney estate. Jack is not the average nobleman; he sings and dances across the estate and thinks he is Jesus reincarnated. Believing that Jack is mentally unfit to own the estate, the Gurney family plots to steal Jack's inheritance. As their outrageous schemes fail, the family strives to cure Jack of his bizarre behavior, with disastrous results.