A partially under construction office tower is being haunted by a deadly presence which seems to target the building's architect.
Veronica, recently divorced with a son, begins to organize her life and adapt to the new situation. Her problems are soon relegated to the back ground when Carlos, her masseuse, is murdered. Knowing himself in danger, Carlos left a final message on her answering machine: she had to retrieve a package hidden in a railway station toilet. From that moment, Veronica will not know peace.
With her family and wealth in shambles, Teresa marries the much older Nicolás, a man with morbid obsessions. Soon after, Nicolás soon dies, leaving Teresa with his fortune. However, Teresa begins to acquire the same personality and morbid obsessions as her late husband.
