Student in anthropology at McGill University in Montreal, Etienne and Eloise associate has a team of paranormal investigators to unravel the mystery surrounding the death of a student of the same court, 10 years ago. Their research will combine science and paranormal while we will follow the court their visit to Quebec three places known for their haunting phenomena. Faced with the horror and death, they will face their own demons in order to survive their nightmare.

At the hospital, three brothers meet at the bedside of their mother in a coma. To pass the time, they discuss the merits and pleasures of marital fidelity and infidelity. The conversations of the two youngest advance as the days go by in increasingly juicy details and fantasies, which will push them to act against the morals and more solid values ​​of the eldest.

Karmina, a young vampire (only 140 years old) flees her Translylvanian castle where she must marry the horrible Vlad to please her father, the mean Baron, and her mother, the eccentric Baronness. Karmina finds refuge in Quebec at the home of her aunt Esméralda, an older vampire who lives among humans thanks to a potion that temporarily transforms a vampire into one of them. Under the effect of the potion, Karmina falls in love with Phillipe, a charming church organist. But Vlad, the Baron and the Baronness soon show up in pursuit of her and turn a poor customs officer, Ghislain Chabot, into a vampire to aid them in retrieving her. Esméralda must become the great vampire of yesteryear to fly to the aid of the lovers.