The human heart beats faster for a variety of reasons. Some of them are wonderful and optimistic. Others are deceptive and senseless, and this is noticed by all but us. But what can make a cardiologist's heart beat faster? Zedi thought that for almost twenty years of friendship she knew everything about her friend Emma. She remembers every day of medical school, girls' experiences and night parties. In the past, they knew each other well. Too good. However, now that Nick, a former mentor, has returned to their lives, things have changed. His appearance reminded Emmy of the horrors that had befallen them during their years of study, of the fact that nearly ruined the lives of both friends. In Nick's presence, Emma's heart seems to jump out of her chest. From happiness or maybe from fear? ..