Call from an unknown number

It was in vain that Tanya Sadovnikova hoped that she would be able to settle down, become an ideal mother and a good housewife. Family relationships did not work out, but she does not refuse to help her ex when his father dies under mysterious circumstances. According to the official version, the cause was health problems, but Tanya and Denis begin their own investigation. It soon becomes clear: such a death is far from the only one; dozens of people were affected throughout the country. Tatyana is eager to save them, but in the end she herself finds herself in mortal danger...