Unforgotten Season 6 finale ending explained: Revelation of Gerry’s murderer put the detectives in a difficult position

The acclaimed British crime drama series, Unforgotten Season 6, wrapped up with the release of its final episode on September 28, 2025. The series finally revealed who actually killed Gerry Cooper. The abusive and misogynistic man had various enemies, but in the end, he was unintentionally killed by his own family.

Initially, Juliet, Gerry's wife, confessed to the crimes and was arrested for killing and trying to hide the evidence. However, the detectives later learn that it was Gerry's daughter who stabbed his leg to protect her mother, which resulted in Gerry's death.

This brought a difficult situation in front of the detectives as they also discovered that Taylor wasn't even aware that she had killed her father, and they decided to let Juliet decide on what she wanted to do about it.

Here's what happened at the end of Episode 6 of Unforgotten Season 6.

Disclaimer: The article contains spoilers. Reader discretion is advised.

Unforgotten Season 6 finale ending explained: Juliet confesses to killing Gerry

In the ending of Unforgotten Season 6 finale, Juliet confesses to the murder of her husband. She narrates the whole event that took place in 2021. She tells them that Gerry had come home at 11 p.m. and was hurling abuses at her, both physical and verbal.

In an attempt to protect herself, she jabbed a paring knife that she used to cut vegetables with, on his leg, and while he was bleeding, she went to the bathroom. After it got absolutely quiet, she came out of the bathroom and saw Gerry dead on the floor. She then dismembered his body and placed it in separate bin bags.

Bought supplies using cash, canceled his meeting using his phone, and tried to blame Marty, as she knew he was the one who attacked Gerry once. She parked his car near the Thames and filed a report of him missing.

Sunny and Jess believed her story until they went to interview Taylor, who, unknowingly, told them the truth about being her father's killer.

Unforgotten Season 6 finale ending explained: Taylor killed Gerry while protecting her mother

The end of the finale of Unforgotten Season 6 introduced a shocking twist that raised a difficult position for the detectives. As they went to interview Taylor, the girl told them that whatever her mother did was out of self-defense, as his father was beating her up brutally.

She tells them that she saw what was happening, which put the detectives in doubt, as according to Juliet's story, Taylor did not know. However, the girl, who was 11 years old at the time, saw her father hitting her mother and took the paring knife and stabbed it in her father's leg. At the confession, Sunny tried to make her aware of her rights, but Jess stopped him from questioning further as she realised Taylor might not even know that her stab resulted in her father's death.

Sunny then asked Jess to let Juliet decide what to do, and if she is ready to serve her prison sentence and take the full blame, they should keep quiet about what they learned from Taylor.

Unforgotten Season 6 finale ending explained: Taylor is not charged for killing her father

The detectives then visit Juliet in prison and tell her about finding out what teh real truth was. At the end of Unforgotten Season 6, they give her a choice: whether she wants to go on trial for killing Gerry. She would be sentenced to prison for two years for killing her husband in self-defense, or reveal the whole truth to Taylor and the prosecutor.

This might give the mother and daughter a chance to be free from being charged, as, based on the facts, Taylor might not be charged for accidentally killing Gerry. But that would be a risk.

At the end of Unforgotten Season 6, Juliet decides to reveal the truth, and both Taylor and Juliet are let go by the prosecutor without any criminal charges against either of them. Furthermore, DI Sunny decides to pursue a new relationship, while DCI Jess decides not to forgive her husband for his infidelity.

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