When an unexpected tragedy occurs, the best friend of the victim's ex-girlfriend appears on the radio talk show, "Tu Voz Estéreo" [Your Stereo Voice], to give her perspective about what lead up to the unfortunate event.

On the popular Colombian TV program, Tu Voz Estéreo, Sebastián's girlfriend's best friend, Paola, offers some insight into the state of mind of his doting mother, Doris, who refuses to accept her deceased son's fate.

Due to his mother Doris' extremely overprotective nature, Sebastián opts to plan a trip with his girlfriend without telling her. However, when he carelessly leaves them in plain view, Doris spies their tickets.

Sebastián's girlfriend, Mariana, is ready to set off for the trip they have planned. However, it's almost time to go, and her normally punctual boyfriend is nowhere to be found.

The plane is about to leave and her boyfriend, Sebastián, still hasn't arrived, causing Mariana to worry that something has happened to him.

Desperate for answers, Mariana decides to go to Sebastián's house to look for him personally, thinking he may have changed his mind about eloping with her and never imagining the awful truth.

When Mariana gets stood up by her boyfriend, with whom she was planning to elope, she becomes worried about him and arrives at his home with her friend, Paola, to try find out what possibly could have happened.

After Mariana spots Sebastián through the window of his home, she is even more eager to find out why he stood her up and continues knocking on the door until his mother, Doris, finally opens it and invites her in.

To top off Mariana's uneasiness when speaking to her boyfriend's overbearing mother, following a glass of mango juice served by her, she starts to feel queasy.

Paola begins to suspect that something bad might be happening to her best friend Mariana and calls the radio show "Tu Voz Estéreo" [Your Stereo Voice] for help.