The Killing (2007)

S1E4 Episode 4

On November 5 and 6, the police delve into a crime scene at Nanna's school, turning their attention to her classmates, Oliver and Jeppe, as potential suspects. In Copenhagen, Sarah Lund's fiancé arrives, prompting her to assure him that she will depart for Sweden promptly. Meanwhile, Hartmann uncovers that a reliable staff member has dispatched an alarming email, raising concerns about their trustworthiness.