Three college students from Montreal decide to share an appartment who happens to hide an unexpected guest. The ghost of a boy named 'Théophile Langevin' haunts the place until he finds out who killed him and why. With the help of Vicky, Justine & Greg, they will all find out what truly happened in 1957.

• Yan England
• Sarah-Jeanne Labrosse
• Marilou Morin
• Guillaume Perreault
• Olivier Aubin
• Louis-Olivier Mauffette
• Cynthia Wu-Maheux
• Benoît Drouin-Germain