Michel has a secret: his best friend is a vampire. Not a cheap vampire with false teeth and flour on his nose, a real vampire, who lives at night with real monsters, extraordinary adventures. Petit Vampire, for his part, finds the life of Michel, who goes to school every day like all children, much more extraordinary. Every night, Michel rides on the back of Fantômate, the tomato-colored ghost dog, and goes to meet Petit Vampire, Madame Pandora, Le Capitaine des Morts, Marguerite, Claude and Ophtalmo.
