Season 1 of Liar premiered on September 11, 2017.

A teacher goes on a date with a surgeon and accuses him of assault the next day. When the police don't believe her, she takes things into her own hands.

Season 2 of Liar premiered on March 2, 2020.

After the events of last series, a body is found in the Kent marshes. Detective Inspector Karen Renton and her team must now investigate.