The Killing is a Danish police procedural set in the Copenhagen main police department and revolves around Detective Inspector Sarah Lund and her team, with each season series following a different murder case day-by-day and a one-hour episode covering twenty-four hours of the investigation. The series is noted for its plot twists, season-long storylines, dark tone and for giving equal emphasis to the story of the murdered victim's family alongside the police investigation. It has also been singled out for the photography of its Danish setting, and for the acting ability of its cast.

Based on an original idea by best-selling Danish novelist Elsebeth Egholm, the series follows the inquiries of a special unit at Copenhagen's police force, consisting of detective inspector Katrina Ries Jensen and forensic psychiatrist Thomas Schaeffer. The pair specialise in serial killers that do not fit within traditional behavioural patterns.

Mikkel's cocaine deal goes wrong, and now he's running away with the police hot on his heels. He spots an empty car and jumps in. But he overlooks a stowaway. Little Malene is sitting in the back seat, because she was going swimming with her father. Now Mikkel has to take responsibility for both a child and his own crime.

In this tale of second chances, two ex-lovers run into each other in a restaurant. Both are with new partners. Both are unhappy. Both are still in love with the other. Dormant feelings rush to the surface and the opportunity to rekindle the past presents itself. Will the outcome be different?