A musician witnesses the murder of a famous psychic, and then teams up with a fiesty reporter to find the killer while evading attempts on their lives by the unseen killer bent on keeping a dark secret buried.
After spending decades living in the shadow of his more famous and successful sibling, Consulting Detective Sigerson Holmes (Wilder) is called upon to help solve a crucial case that leads him on a hilarious trail of false identities, stolen documents secret codes.
King Arthur, accompanied by his squire, recruits his Knights of the Round Table, including Sir Bedevere the Wise, Sir Lancelot the Brave, Sir Robin the Not-Quite-So-Brave-As-Sir-Lancelot and Sir Galahad the Pure.
Take a cliched Horror-story beginning, a remote Gothic mansion, an insane hostess, a group of strangers (four men, three women and a gorilla) and you pretty much begin to see that this is not meant to be a serious film, but rather a parody of several other (older and better) ones.
In this sequel to True Grit, John Wayne returns as Marshal Rooster Cogburn. After a band of drunken thugs overruns a small Indian Nation town, killing Minister Goodnight and raping the women folk, Eula Goodnight (Katherine Hepburn) enlists the aid of Marshal Cogburn to hunt them down and bring her father's killers to justice.