The Guy Next Door (2007)

Nathalie is a single mother whose life resembles an obstacle course, which includes raising a 10 year old son, Leo, and fighting off the threats of expulsion from Mr. Martin, her reclusive misanthrope of a landlord - and next-door neighbor. To complicate life even more, there is now Leo's father, Vincent, who has always fled his paternal responsibilities but now demands custody of his son. Mother and son suddenly find an unexpected ally in...Mr. Martin. A former lawyer, he has taken a liking to Leo, but his obsessive-compulsive behavior in court only leads to Nathalie's loss of Leo's custody. Yet, these tragic-comic events mark the beginning of a romance between Nathalie and Mr. Martin which will allow the embittered recluse to pick up the pieces of his broken past.