Taking place in Afghanistan, which seems to have normalized after the war but is still seething under the surface, Toz is based on the emergence of secrets from a family's past one by one. Azra, Emir and Ahmet are three Afghan siblings born and raised in Istanbul. After their mother's death, Azra sets off to find out why she inherited a house in Afghanistan, to see the house and to really get to know her family. She ignores her brother Emir's concerns and goes to her uncle, who refuses to tell her anything. Her uncle is uncomfortable with her even going out alone and is rude to his wife and daughter. Azra gets close to a handsome and polite café owner whom she meets by chance and tries to reach her relatives, whose existence she has just learned about, through this man.