Lucía, Lucía [La hija del caníbal]

Lucia, an children's book author, tells the story of her husband's disappearance. One day on their way to Brazil he just disappears. She goes to the police, gets a ransom note, and makes friends with the old dude downstairs and the young dude upstairs as she tries to find him. Things take a bit of a twist as she realized the kidnapping may not be as simple as it seems on the surface.