Aslı, who struggles with phobias caused by her stepfather during her childhood, undergoes psychological treatment. Aslı, who struggles with a fear of the dark, a fear of contamination, a fear of shadows, and a fear of mice, is forced to take the subway home after attending a party one night when she cannot find a taxi. Carrying two bags containing disinfectant, a flashlight, spare batteries, and various cleaning supplies to help her overcome her fears, Aslı boards the train, chooses a quiet spot, and starts listening to music. However, she falls asleep and ends up trapped in the last car when it reaches the final stop. When she wakes up, Aslı finds herself alone in a dark car and realizes that one of her bags has been stolen and her phone is dead. Left alone with her greatest fears, will Aslı be able to escape the car?

The second film in the phobia trilogy, Second Session: AEEP, tells the story of Demet, who has had to struggle with phobias caused by trauma throughout her life, and her fears and nightmares.

The final film in the Phobia Trilogy follows Selim, who suffers from psychological issues due to parental trauma he experienced in his childhood, as he continues his routine life but finds himself caught up in unexpected events when his phobias are triggered during a journey.