I am looking for an animated music video that I watched on YouTube in 2015.
Story: Three mentally ill patients are escaping from a mental institution. Staff are chasing them. At the end, they reach a tree on which they are cutting with a knife and making a commemorative photo. At this moment, they are captured and returned to the institution of the insane.
The animation is pretty, smooth, clean, the colors are rather pastel, bright. Singing rather in French (little singing, more purring) performed by a man. Cheerful music, a little banjo.