Death by Engagement (2005)

Left at the altar by his traitorous fiancée, Spencer Starkington snaps and spirals into insanity and murder when he becomes obsessed with retrieving an heirloom engagement ring belonging to his mother, and her mother, and so on. Spencer leaves a trail of bloody brides-to-be as the ring inadvertently passes from hand to hand, with Spencer always one step behind it. Hot on Spencer's trail are detectives Rikki Moore and Cate Hamilton, who follow the corpses Spencer leaves in his wake.