French Lessons (2019)

When two friends realize they've hit a dead end in their lives, one of them suggests taking drastic measures to develop a new skill. Reluctantly, the other friend agrees to take part, putting himself in the uncomfortable situation of hitting his friend as hard as he can in the back of the head in the hopes that he'll come to with a newfound French fluency. After a failed first attempt, the friends decide to try again until they get it right. But as jealousy seeps into the equation, their brilliant plan quickly takes a turn for the worse.