Sweet Evil (2010)

Fifteen-year-old Céline has a world-wise perspective that belies her age. She lives on the streets, relying on her boyfriend Romain and her own sharp instincts to survive. She finds refuge in the garden house of a wealthy villa, where she's discovered by the owner, Judge Henri van Eyck. Despite his wife Nathalie's reservations, he offers her shelter, and Céline slowly earns their trust and affection. But their fragile bond is threatened when the lies Céline has told to gain their protection begin to surface, revealing her true intentions.