Freely inspired by one of the most beautiful and least-known stories of H.P. Lovecraft (The Pickman model), Carnival is set in a gloomy and decadent Venice. A few days from the beginning of the Carnival, the triumph of Josef, a painter who has finally achieved success after being ignored for years due to monstrous creatures populating his paintings, is celebrating. A success largely due to the beautiful Leontine, one of the most popular models in the world, who agreed to pose for him. Obscene, cursed paintings, in which she has sex with those creatures. During the last visit to the painter's studio, Leontine finds a photograph depicting one of the monsters painted in the paintings. Initially skeptical about its authenticity, she soon finds out that this is not a fake one. Something scary lies in the lagoon, something old, forgotten. A secret secured for millennia is about to be unveiled, inhuman beings will soon walk among us. The Carnival will only be the beginning of an endless nightmare.