Matters of the Heart () is a 1973 Soviet drama film directed by .
The film follows one night in the life of a specialized cardiology ambulance team of a physician, two paramedics, and a driver responds to emergency calls involving cardiovascular conditions, rushing through the streets of nighttime Moscow.
As they move from one call to the next, the team encounters a range of patients and medical emergencies, varying in severity and urgency. Their shift includes routine interventions, unexpected complications, and interactions with patientsâ families. Through these situations, the professional and personal dynamics among the crew members are gradually revealed.