Paramedics rushed to the luxury Hotel Pension Grimus on Mount Buller in the early hours of July 27, 2025, following reports of a drink-spiking incident. Melissa Jreissati, 33, a marketing director at Levantine Hill winery and daughter of prominent property developer Dr. Elias Jreissati, experienced heart issues, cold sweats, and clammy skin after the alleged attack at 11:49 p.m. on July 26.
Allegations Against Amy Tossoun
Authorities charge Brighton socialite Amy Tossoun, 33, co-founder of Richmond Dentist and mother of three, with spiking Ms. Jreissati’s drink during a mutual friend’s birthday gathering at the upscale ski resort. Tossoun faces charges of possessing amphetamines and introducing a drug of dependence into another person’s body, offenses carrying a maximum five-year prison term upon conviction.
Victoria Police confirm the incident occurred at a licensed premises on Mt Buller. Ambulance Victoria declined to disclose specifics, stating that involved parties have been identified.
Profiles of the Women Involved
Ms. Jreissati maintains a low-key social media presence despite frequent appearances at high-society events. Her family, led by Dr. Jreissati as chairman of the Jreissati Group, recently listed a Eureka Tower sub-penthouse for nearly $13 million.
Tossoun, known in elite Melbourne circles and speculated as a contender for The Real Housewives of Melbourne reboot, was photographed at Mt Buller prior to the charges. Her spokesperson stated she is “taking this matter extremely seriously” and has engaged lawyers. “Now that the matter is before the court, she will not be making any further comment,” the spokesperson added.
Mt Buller’s Controversial Past
The exclusive Mt Buller resort draws Melbourne’s wealthy for winter festivities, including lavish penthouse parties like those at the Timbuktu complex, currently listed for $9.25 million. The area has seen prior scandals, including a 2016 staff event at Reindeer Ski Lodge involving property damage and violence, and a 2017 misuse of $85,000 in public funds by resort management.
Tossoun must appear at Mansfield Magistrates’ Court on June 10.

