This is a village called Atrani. It is situated half a mile from Amalfi and connected (mostly) via a tunnel that is tricky to find. It is very quiet in comparison to Amalfi or Positano. Because of this the place has a nice laid back vibe.
Atrani was used as a backdrop in the Netflix series "Ripley" as well as Denzel Washington's "The Equalizer 3" film.