Giallo

In Turin, Linda, a French flight attendant, teams up with Italian-American detective Enzo Avolfi to locate her younger sister Celine, who has been abducted by a serial killer known as 'Yellow.' They pool resources and begin tracing clues across the city, following a dangerous lead that could expose the killer's identity. The goal is to rescue Celine before more victims are taken.

A fellow officer discovers an Asian woman’s body outside a church near a fountain; she is alive and speaks in Japanese, muttering the killer’s nickname. Enzo and Linda realize the word 'Yellow' is not just a label but a cryptic thread tying the cases together. They seek a translator to decode the message and push the investigation forward.

They visit the morgue where Linda suspects the killer could be 'Yellow' after seeing a possible face match. The coroner mentions that yellow skin can be a symptom of liver disease, suggesting the killer might be waiting for a liver transplant. This medical angle hints at motive and timing for the killer’s next move.

The investigators track a lead to a hospital and locate Giallo, but he escapes before they can arrest him. The chase tightens as they realize the killer is closer than they thought. Enzo and Linda vow to pursue him through the city, despite the danger.

Enzo uncovers the killer’s real name, Flavio Volpe, and obtains his residential address. The revelation shifts the investigation from theory to direct pursuit as they close in on the suspect. The team starts mapping his movements and potential hideouts.

Giallo captures Celine and tortures her, cutting one of her fingers after she insults him. The torture sequence demonstrates his control over his victims and raises the stakes for Linda and Enzo. The danger to Celine becomes personal for the detectives.

Enzo breaks into Giallo’s apartment but finds it empty and filled with torture devices, confirming the killer’s sadistic habits. The discovery deepens the mystery and confirms that Celine’s fate depends on their next move. They realize Giallo is possibly already prepared for more victims.

During a tense exchange, Enzo explains why he became a cop: as a child he witnessed his mother’s murder by a moneylender, and years later he killed the butcher responsible. Inspector Mori took him in and he keeps the knife as a reminder. He also speculates that Giallo is a pattern killer who hates beautiful women due to deformity.

A flashback shows Giallo’s troubled childhood: his mother, a prostitute, gave him up for adoption at a church, and orphaned kids bullied him, shaping his fixation on beauty and power over others. This backstory explains his cruelty and method.

Celine tries to escape again but is recaptured, signaling the killer’s relentless control over his victims and heightening the urgency for a rescue. The tension rises as the detectives close in on Giallo’s whereabouts.

Giallo breaks into Linda’s apartment and demands a ransom for Celine’s safe return, escalating the confrontation and foreshadowing the climactic showdown. The intruder aims to force the police to reveal Celine’s location.

Enzo and Giallo engage in a high-stakes shootout in a hotel. Giallo attempts to flee through a skylight but plunges to the lobby floor, dying instantly. The immediate threat to Celine ends, though the search for her continues.

Linda berates Enzo, blaming him for her sister’s fate and accusing him of selfishness and inhumanity, convinced that Giallo would have revealed Celine’s location. Enzo tries to reason with her, but she remains hostile as they part ways. The emotional fallout underscores the personal cost of the pursuit.

A police patrol, by chance in a car park, hears faint sounds from inside the trunk of Giallo’s car and discovers Celine, tied up and gagged. A timely intervention salvages what remains and culminates in the investigation’s closure. This moment confirms the killer’s reach and the detectives’ persistence.