- HD 1080
- Runtime: 50m.
- Status: Ended
0
- Languages: es
- Country: Spain
- Stars: Cristina Plazas, Oriol Tarrasón, Miquel Fernández, Natalia Verbeke
- Production_studio: Diagonal Televisión
- Seasons: 1
- Episodes: 13
- First air date: 2019-11-24
- Last air date: 2020-02-16
- The El nudo is featured in the top rankings of 2019
- #67 in Top Mystery Series of 2019