The halves of two bodies, one belonging to a female Swedish politician, are discovered in the middle of the Øresund Bridge, which connects Copenhagen in Denmark with Malmö in Sweden. The body, cut in half at the waist, has been placed precisely on the border between the countries, thus falling under the jurisdiction of both the Danish and Swedish police agencies. After further examination, it turns out that the body is that of two separate corpses, with one half belonging to a Danish prostitute. Saga Norén, from the Swedish side, and Martin Rohde, from the Danish, lead the investigation to catch the murderer

两个自童年已是好朋友的学生一起为功课制作一部短片，二人因剧情需要而接吻。这亲密的一刻引发了一连串事件的连锁反应，由最初一些让他们挥之不去的问题：如他们的爱好，他们的性取向，到后来甚至改变了他们之间友谊的性质和关系，甚至更广泛地改变了他们的社交圈。