Wedding for One (2010)

Danny LaBelle is to wed Monica Johnson on the island, but flirts with host and maid of honor Claire La Foret, while embarrassing his nerdy brother Sam, who has an eye on Claire. After a cocky confrontation in the forest with Claire's dominant ex Jeff Doyle, who just returned to the island and soon seduces her again, Danny disappears. Claire keeps that quiet as the gue...