Dr. Carlo Mantovani works in the maternity ward of San Marcos hospital. He is a renowned obstetrician, respected by colleagues and patients. Unknown to all is that he is a murderer of pregnant women. He disguises his crimes as natural deaths, which has allowed them and him to remain undetected. When one of his colleagues, Dr. Diego Hatcher, investigating the mysterious death of one of his patients, discovers his role, he decides to relay his suspicions to the hospital's directors. To his surprise, the order him to remain silent and opt to ignore the truth, thereby protecting the murderer. So begins a mortal game where mother's lives hang in the balance, secrets are the order of the day, and hidden agendas determine the destinies of many persons.