Trieste. An old building, an old apartment. This is where Pietro lives, tiredly, until his normal and solitary daily life is devastated by an eviction order. The old man doesn't want to leave and he comes up with a plan to continue living secretly in his home. He builds a wall at the end of a long hallway in the apartment, a true vertical hiding place inside which he can disappear. But one day, a desperate mother upsets his plan.