Welcome to Happiness (2015)

Woody (Kyle Gallner), a children's author, rents a strange apartment from his landlord, Moses (Nick Offerman). There's a magical door in Woody's closet that allows those who go through it to erase mistakes from their past. While he was once happy to facilitate the passage of the random strangers summoned to his apartment, Woody soon begins to question why he himself is not allowed to go through.