Between rehearsals for her imminent theater play, Malena has trouble coping with the stress and trying to connect with Sebastián, her boyfriend. Her perspective changes when she goes through a strange and fantastical event that makes her revisit the most important events in her relationship.

Parallel, a poignant psychological drama, explores the complex dynamic between two women from similar backgrounds, now on opposite sides of a therapist's couch. The film delves into the intricacies of their relationship, being the lines between reality and past.