Denmark, 2016. A blurred note is found in a bottle that has traveled across the ocean for a long time. After deciphering the cryptic note, Department Q follow a sinister trail that leads them to investigate a case that occurred in 2008. At the same time, new tragic events take place that test their faith and deepest beliefs.

Dex, a young man connects with his childhood friends, Hugo and Edison at their former teachers funeral. At the funeral Dex meets his x-girlfriend Mona whom he still have feelings for, Mona reveals that she is getting married and invites Dex to the wedding. Dex decides to crash her weeding and win her back at the ceremony. In the mean time the three friends finds the core of their relationship and realizes, they need to stand together to overcome the struggles awaiting them.