Monique Heneault, 27, was last seen in her Montreal apartment on June 4, 1986. She is 4 feet 9 inches tall, about 110 pounds, with brown hair and brown eyes. Investigators found her apartment in a condition that suggested she expected to return: some reports say leftovers from a recent meal were on a table and counter, while Montreal Police Service accounts describe a full bag of groceries left unpacked on the kitchen table. She was scheduled for an appointment and had rented a chalet in Labelle, Quebec, which she never reached.

The differing descriptions of the apartment complicate the timeline, but both point to an abrupt, unplanned disappearance rather than a prepared departure. The investigation remains open and the reasons for her failure to attend the appointment or arrive at the chalet are unresolved.

If anyone knew Monique, her routines, or saw her in Montreal or en route to Labelle that June day, please share what you remember.