Diane Bélanger was 19 when she vanished from Montréal on August 8, 1982. She had been staying at 2269 Dorion Street with her boyfriend’s cousin and their child while preparing to start an internship after enrolling in the Katimavik program. The night before her disappearance the couple returned home about 3:00 a.m. and shared a pizza with Diane; they said she told them a man had followed her home. When they woke the next morning Diane was gone.

The storm-door screen was torn, Diane’s purse contents were scattered on the floor, and a bread knife was missing, yet no signs of a struggle and no neighbors reported hearing anything unusual. Investigators later found another woman named Diane Bélanger with the same birthdate who had been beaten and claimed someone in her network wanted her dead; she suggested the missing Diane might have been a mistaken identity and said Diane’s body could be buried in Chertsey. Searches of Chertsey and a dig beneath a neighboring townhouse’s floor turned up nothing, and police interviewed roughly 70 people without resolving the case.

Does anyone who lived in Montréal in 1982 remember Diane, the apartment at 2269 Dorion Street, or unusual activity in Chertsey?