Superficies Planas

Álex and Ruth meet through a dating app, immediately become inseparable, move in together, and live as a happy couple, until Álex notices that Ruth is experimenting certain changes.

Laura cannot sleep after a nightmare, so she goes for a walk with her dog.

Jaime is a man of humble origins with a dark past who works the night shift as a janitor in a high-class building. While he picks up the garbage he eavesdrops as Cristina, the neighbor on the third floor, has an intense argument with her husband. She doesn't think anything of it, since it's a regular occurrence.