Ardiente secreto is a Mexican telenovela produced by Irene Sabido for Televisa in 1978.

[1] The orphan Mariana Cisneros was shut in (in a college) by an aunt who hates her, she suffers from some terrible pains, but she take advantage of the education and culture.

When she turns 18 she finds a job as a governess of a silent and lonely child, Adela, who is the daughter of Eduardo.

Mariana wins Adela's love and she is attracted by Eduardo.

Mariana and Eduardo fall in love, but a terrible secret will take them apart.