Haunted Honeymoon is a 1986 American comedy horror film starring Gene Wilder, Gilda Radner, Dom DeLuise and Jonathan Pryce. Wilder also served as writer and director. The film also marked Radner's final appearance in a movie prior to her death of ovarian cancer in 1989. The title Haunted Honeymoon was previously used for the 1940 U.S. release of Busman's Honeymoon based on the stage play by Dorothy L. Sayers.
In the film, Wilder and Radner play Larry Abbot and Vickie Pearle, two radio murder mystery actors who decide to get married. Larry, plagued with on-air panic attacks, is treated with a form of shock therapy and subsequently chooses to marry Vickie in a castle-like mansion which had been his childhood home. Once there, they meet the eccentric members of Larry's family, including his great-aunt Kate (DeLuise) and his cousin Charles (Pryce).
Honeymoon was distributed by Orion Pictures through a deal with HBO. The movie flopped (grossing just short of its $9 million budget), was critically panned, and earned DeLuise's character of Great-Aunt Kate the Razzie Award for Worst Supporting Actress. The movie represents the last feature film appearance for Radner (prior to her diagnosis and death from Ovarian cancer) and the last directorial role for Wilder.
Larry Abbot (Wilder) and Vickie Pearle (Radner) are performers on radio's "Manhattan Mystery Theater" who decide to get married. Larry has been plagued with on-air panic attacks and speech impediments since proposing marriage. Vickie thinks it is just pre-wedding jitters, but his affliction could get them both fired.
Larry's uncle, Dr. Paul Abbot, decides that Larry needs to be cured. Paul decides to treat him with a form of shock therapy to "scare him to death" in much the same way someone might try to startle someone out of hiccups.
Larry chooses a castle-like mansion in which he grew up as the site for their wedding. Vickie gets to meet Larry's eccentric family: great-aunt Kate (DeLuise in drag), who plans to leave all her money to Larry; his uncle, Francis; and Larry's cousins, Charles, Nora, Susan, and the cross-dressing Francis Jr. Also present are the butler Pfister and wife Rachel, the maid; Larry's old girlfriend Sylvia, who is now dating Charles; and Susan's magician husband, Montego the Magnificent.
Paul begins his "treatment" of Larry and lets others in on the plan. Unfortunately for all, something more sinister and unexpected is lurking at the Abbot Estates mansion. The pre-wedding party becomes a real-life version of Larry and Vickie's radio murder mysteries, werewolves and all.