He is best known for the 2017 German-Austrian animated film Tehran Taboo, which explores sexual and gender double standards in Iran.
[8][9] The film has attracted attention for its subject matter and its visual style, which The Hollywood Reporter has described as "a unique combination of rotoscoping and motion capture with hand-drawn and computer animation".
[5] Soozandeh told HuffPost that the inspiration for the film came from a conversation he overheard between two young Iranians on a train, concerning their experiences with women in Iran.
[7] The anecdote about the prostitute and child was the "lightning bolt" that made him want to tell this story, and it became one of the plot elements in Tehran Taboo.
[11] Since the film could not possibly be made in Tehran, Soozandeh used the rotoscoping technique, which combines animation with live action, thereby allowing Iranian visual elements to be superimposed on each scene.