After getting into a minor traffic accident, Pablo attempts to make light of the situation by asking the driver of the other car, Sonsoles, out on a date. When she refuses and instead files an injury report, Pablo snaps and begins stalking her. He soon discovers that Sonsoles has a beautiful teenage sister, Maria, with whom Pablo is immediately infatuated -- a lust that soon turns dark. Can Pablo control his obsession, or will it consume him?
| Actor | Role |
|---|---|
 Luis TosarPablo López | Pablo López |
 María ValverdeMaría | María |
 Mar ReguerasSonsoles | Sonsoles |
 Nathalie PozaEva | Eva |
 Manolo SoloNot listed | Not listed |
 Rubén OchandianoManu | Manu |
 Jordi DauderAlfredo | Alfredo |
 Enriqueta CarballeiraDolores | Dolores |
| ÁÁngela HerreraElsa | Elsa |
 Daniel GraoPerico | Perico |
 Roberto DragoRaúl | Raúl |
 José Antonio IzaguirreArmando | Armando |
 Luis Miguel SeguíMunicipal | Municipal |
| CCarla GayanIzaskun | Izaskun |
| CCristina BarrosoAndrea | Andrea |
| MMarco Aurelio GonzálezMarcos | Marcos |
| VVíctor Fernández AldanaCliente | Cliente |
| FFernando LageHombre reunión | Hombre reunión |
| MMariola RuizMujer reunión | Mujer reunión |
| JJuan Manuel RodríguezTaxista | Taxista |
| EEsther LozanoOperadora información | Operadora información |
| MMiguel ArroyoHombre seguro | Hombre seguro |
| CCristina BrosedMegafonía aeropuerto (voice) | Megafonía aeropuerto (voice) |