It's Murder! is a broad comedy with an intricate plot and a lot of characters. Scott plays a stupid detective, investigating the death of a father, and the whereabouts of his will. Both Jane Bradley played by Cheryl, and Uncle Jasper and played by Sam, try to kill the detective at every opportunity to stop the will being found, so they can inherit his estate, while Milton, the son and rightful air, assists the detective. Milton eventually digs up their father's grave and finds the will on the body, only to be attacked by Jasper's henchman. A grand car chase ensues, and good finally triumphs.