The Killer Beside Me exposes the dark underbelly of workplace evil where rivalry, romance, and the abuse of power culminate in a brutal slaying. Each episode in this series retells the shocking events leading to a horrific murder. How well do we really know our co-workers?

Jeppe Nygren takes over as deputy conductor of the Copenhagen Symphony Orchestra and is warmly welcomed by his new conductor, who speaks candidly about the musicians' peculiarities and olates. The conflict-ridden Jeppe quickly gets an example of these olates and happens to give the embittered second clarinetist Bo with a cursed promise of a solo part. But it has far-reaching consequences.

Sam is a hard-headed manager at a family-run business in the North West. However, when Sam arrives at work one day to find a dead body in the office reception she is forced to reckon with not only murky behaviour in the present, but murderous secrets from the past as well.

From the perspective of the beauty salon employee Xiaomi, the film shows the survival plight of three women of different ages and careers: Anna, an internet celebrity Bella, and Gina, a company executive. Through the mouth of the intellectual store manager Yilan, it reveals many workplaces sharply Survival scams, women’s unfairness in the workplace and other social status quo, use urban “micro-shuang dramas” to create an illustration of women’s survival in the workplace.