Hierro (2019)

S1E4 Episode 4

On a secretive trip away from the island, Díaz uncovers that Fran was attempting to sell some valuable items just before his death. However, he remains in the dark about the nature of these items and the identity of Fran's accomplice from El Hierro. This enigmatic partner may be the killer, as they have been intruding into both Fran's and his mother's homes. Meanwhile, Candela grows frustrated with the slow pace of the police investigation, placing her trust solely in Reyes. Ultimately, the local officer uncovers the murderer's identity, but sadly, she won’t survive to share her findings.