The Night Traveller (1981)

The son of a taxi driver goes to Europe to pursue his studies but goes wasted. One of his friends takes him to a group of drug smugglers which is managed by a woman having influence over others. The son is arrested in a mission smuggling drugs in Iran but the leader orders to release him. Instead of him, they arrest an addicted in Jamshid street and sentence him to death. The son is influenced by this event and begins to fight against the smugglers and he is injured severely. A sweeper finds him in the street and calls an ambulance. The taxi driver comes to the location and takes his son to the hospital.