Les Bêtises(2015)

A man named François, adopted as a child, sets out to find his biological mother. Posing as a waiter at a family gathering, he infiltrates her home, hoping to uncover the truth. His clumsy nature leads to a series of comedic mishaps, disrupting the event and causing chaos. As he stumbles through misunderstandings and awkward encounters, his quest for identity becomes increasingly complicated.