The existence of a lonely figure in Mexico City is slipped uncontrollably throughout bodies every so often, making his essence travel through bodies of men and women. Boredom and hopelessness of this being are faced by the love for Luisa and the need to be with her. He starts a struggle to communicate that love via different faces and bodies until he may be with her in spite of his condition.

Shattered by the unexpected news of their irreversible break-up, an aspiring orchestra conductor is puzzled by his girlfriend's mysterious and seemingly inexplicable case of disappearance.

Young Claudia works in a supermarket where she promotes various types of products. One night, she ends up in the emergency room with severe appendicitis and meets Martha, a patient, laying in the bed next to hers.