After a restless night he is awoken by his doorbell insistently ringing. Through the peephole, he sees a stranger. He doesn't know why that man is there but is immediately certain of one thing: he represents a terrible threat. He quickly dresses and manages to sneak away, no doubt in his mind that the stranger is pursuing him, and that the nightmare has only just begun.
A prestigious theater group in crisis prepares for the staging of a famous love tragedy. Mirtha, an actress marked by frustration, decides to leave the theater when a guest conductor offered a starring role. The incorporation of young actors, unscrupulous, and an inspector trigger a series of situations that will endanger the reputation and power of the actress who heads the group.