After suffering a severe heart attack, Nina Ilyina, a young and successful woman, is faced with a terrifying diagnosis. Her fatal illness and the sense of the inevitability of what is happening force her to seriously reflect not only on her own life, but also on the fates of her friends and family. She tries to convey to those around her that happiness should not be put off «until later» and begins interfering in other people’s lives to change them for the better. To find out how the events unfold, watch «Heartbeat» online on ivi.