Rosemary Knower

Sylvia Stickles runs a convenience store with her husband and mother-in-law. One day, Sylvia is hit on the head and transforms from an uptight prude to a sex-crazed lunatic. As she goes on a rampage through town, Sylvia attracts the attention of Ray Ray, a sexual healer and tow truck driver in search of the world's greatest orgasm. Their sexual revolution, however, causes a class war in their tiny Baltimore community.

Brad Sexton and his wife, Caroline, are wealthy New Yorkers with both marital and financial problems. The latter issue becomes a pressing matter when they discover that their accountant has embezzled millions and pinned the blame on them. Forced to go on the lam, Brad and Caroline end up in an Amish area of Pennsylvania and decide to pose as members of the religious group to evade the IRS. As the two adapt to the simple Amish lifestyle, they begin to reconnect.

A group of young adults visit a boarded up campsite named Crystal Lake where they soon encounter the mysterious Jason Voorhees and his deadly intentions.