Marielena is a young, working-class secretary—decent, deeply devoted to her family, and steadfast in her Christian values. However, love catches her off guard when she meets Luis Felipe and feels her heart stir. A newly qualified executive secretary, she sets out to find a job and ends up crossing paths with Luis Felipe again—who becomes her boss. As the days go by, she finds herself drawn to him in a way that proves impossible to hide.

Newly-committed to a mental institution, a woman tries to convince her doctors that her husband conspired to have her put away for selfish reasons unrelated to her mental health.