Pernille arrives to deliver the bad news that Nanna is missing. Theis realizes that he is in debt and gives him a handout but declines the offer. The man offers to involve Theis in selling widescreen televisions that he can obtain through unstated means. He is showing his employee the new, larger home that he has bought for his family. Pernille cannot reach Theis by phone so she learns where his van is parked and goes to find him on her bike. Lund picks up her son from school and takes him home, still hoping to resolve her case in time for her flight. He says that he is unsure if she had a boyfriend and recommends she speak with Lisa. Her teacher recalls Nanna attending the Halloween party that Friday but not what she was wearing. She convinces Hartmann to suspend the debate. Lund goes to the school to question Nanna's classmates. The school is buzzing with preparation for the Mayoral election debate. Her friend Lisa is also anxiously trying to contact her. Lund contacts the school and they confirm that Nanna has not attended class. Pernille tells them that they have been away for the weekend and have not seen their daughter since their return and assume that she has attended school. Meyer is confrontational but Lund realizes that the photograph of their daughter on the fridge might represent the victim of the crime. The detectives go to his home and question Pernille. Meyer convinces Lund to speak to the video card holder, believing that he may have been responsible and might reveal his involvement despite the lack of a complainant. When he is unable to fix the leak, he agrees to hire a plumber and pulls his wife to the floor, kissing her. Theis and Pernille have a loving relationship Theis is called home during the day and is able to joke about their broken dishwasher when it floods their kitchen. He is levelheaded in his business, easily placating an angry customer when his employee damages some of their stock. His two sons are aged six and seven while his daughter Nanna is older. He works from his home, sharing it with his wife Pernille Birk Larsen and their three children. Theis is a business owner, delivering stock to fruit and vegetable shops throughout the city. His chief adviser Rie Skovgaard returns his watch, found under her bed they are sleeping together. His staff prepare him with statistics about the Mayors lack of support for inner city schools. Hartmann is late to arrive because he stops to visit a grave. Mayoral election candidate Troels Hartmann is gearing up for a campaign debate with his incumbent opponent. Among the evidence at the scene are her bloodied size 8 underwear and a video card in the name Theis Birk Larsen. They are assigned to investigate the crime scene and initially believe the evidence to represent an unreported assault against a prostitute. She is packing up her office when her replacement, Jan Meyer arrives. She speaks to her boyfriend who confirms that he has finished packing and is ready for the flight later that night. Her colleagues stage a mock crime scene as a light hearted goodbye and give her a set of skis as a farewell present. Detective Sarah Lund is preparing to move her son to Sweden to join her boyfriend, a university lecturer. The disappearance of Nanna Birk Larsen goes unnoticed until the discovery of some of her possessions in marshland outside Copenhagen. She discovers Nanna's body in an abandoned car belonging to the election campaign of Mayoral candidate Troels Hartmann.

Detective Inspector Sarah Lund is forced to postpone her move to Sweden when she is assigned to investigate the murder of Nanna Birk Larsen.

Forbrydelsen season 3