Mysterious Disappearance Shakes Copenhagen Suburb in New Netflix Thriller

COPENHAGEN, Denmark — The new six-episode thriller, “Secrets We Keep,” explores the mysterious disappearance of an au pair in an affluent Copenhagen suburb. The series, released on May 15, 2025, follows the story of Cecilie, a concerned neighbor determined to uncover the truth about Ruby, a young Filipino au pair who vanishes under suspicious circumstances.

When Ruby goes missing, Cecilie, played by Marie Bach Hansen, feels compelled to investigate. Her search leads her to suspect that the wealthy family employing Ruby, Rasmus and Katarina, might be involved. The story takes viewers through the complexities of privilege and societal expectations in a tight-knit community.

In the opening episode, Ruby, portrayed by Donna Levkovski, approaches Cecilie, expressing fear about her living situation. After that conversation, she disappears, prompting Cecilie to launch her own inquiry. As she digs deeper, the tension escalates, revealing shocking layers of deception among her friends and neighbors.

Local police, represented by Sara Fanta Traore as Detective Aicha Petersen, initially dismiss the case as Ruby being a runaway. However, as Cecilie uncovers critical evidence, Aicha begins to trust her instincts about the case’s darker implications. The series intricately weaves themes of social class, race, and sex, prompting viewers to question their perceptions of truth and justice.

As the investigation unfolds, secrets surface about the characters’ interpersonal relationships and their impact on Ruby’s fate. Tension mounts when it’s revealed that Oscar, the teenage son of Rasmus and Katarina, may have been involved with Ruby, leading to tragic consequences.

“Secrets We Keep” is noted for its strong performances and the nuanced portrayal of its characters, prompting critical discussions about the role of societal privilege. As viewers follow Cecilie’s desperate quest for answers, they are compelled to confront difficult questions about complicity and responsibility in the face of tragedy.

At the end of the series, viewers are left with moral complexities as Cecilie grapples with her own connections to Ruby’s disappearance. The finale closes on an unsettling note, leaving the audience to ponder the unresolved issues surrounding power dynamics and accountability.