Everything Goes Wrong

On a scorching summer day, Jirō Sugita and his gang rove through Shinjuku. He harasses a girl, sparking an argument that forces him to leave the group. He returns home to his single mother, Misayo, and learns about her relationship with Keigo Nanbara, which fuels his jealousy and resentment.

Jirō gets into a fight with Nanbara, tearing through the house in a fit of anger. In the chaos he steals money from Misayo, revealing his volatile temper and strain with both his mother and Nanbara.

Toshimi Tani, one of Jirō's gang, acts on her crush and the two begin an intimate relationship. Jirō remains distant and cool toward the affair, reflecting his growing alienation from the adults and his sense of grievance.

The following day, Nanbara, Misayo, Jirō, and the others head to the Zushi beach resort, each traveling separately. The day introduces the adult and teenage players to the setting where tensions will escalate and secrets will surface.

Etsuko, a college student in need of money for an abortion, guides Nanbara to an empty summer home under the ruse of introducing him to Jirō. She strips and reveals her motive to sell herself for money, which Nanbara refuses while still providing her the funds.

Jirō bursts in with Misayo and exposes Nanbara as a philandering liar. Misayo, though hurt, proclaims her love for Nanbara and begs him to stay with her. Enraged by the confrontation, Jirō and Toshimi flee and steal a car.

Nanbara pursues the fleeing duo in the car. Etsuko’s money, the object of the deception, ends up being targeted by a group of delinquents who grab it from her.

Nanbara finally catches up to Jirō in a hotel room and pleads with him to calm down. Jirō alternates between mockery and kissing Toshimi in Nanbara's presence, and when Nanbara refuses to back down, Jirō attacks him with a wrench.

With police in pursuit, Jirō and Toshimi escape in the car. He seems to have a change of heart, but deliberately drives into the path of an oncoming truck. The moment before he dies, he screams 'Mom!'

Distraught, Etsuko collapses at the entrance to a subway and is taken to the same hospital as Nanbara, who has survived the assault. In the hospital, Nanbara begs for forgiveness for Jirō's actions, and Etsuko survives but suffers a miscarriage.

The next day at a local bar, a journalist for a sensationalist paper tells the owner that Jirō is dead. He expresses his disillusion with youth culture and recognizes how the public craves scandal, musing about starting the story with a line about goodwill disappearing.