Arman Bayani, an infamous film critic wants to make his directional debut with a movie about a serial killer known as The Viper of Tehran.

Arman struggles to make his movie, tries to act like a father to his son, and be open with his therapist about his rough childhood.

Arman has to make amends to his film's investor and deals with his ex-wife.

Arman's therapy makes him more aggressive. He tries to know more about his father.

The production of the movie is on hold. Arman goes to a funeral.

The lead actor is gone. Another filmmaker warns Arman about making the movie.

Arman and his therapist walk on the red lines. The Viper of Tehran opens up.

The production starts with a new lead actor. Arman's school memories reveals a dark side of him.

A new threat from the Viper of Tehran puts the production on hold.

Arman goes under interrogation for what happened on live television.

Arman's connection with his son gets deeper and it gets more complicated with his therapist.