Twenty years after the brutal murders that shook the community, the darkness has returned. When a school lecture is postponed due to the mysterious disappearance of a student, a group of friends plans a secret party to celebrate an 18th birthday. But the party quickly takes a deadly turn.
| Actor | Role |
|---|---|
| SSmilla HolmströmStina | Stina |
| SSabina NiklassonJessika | Jessika |
| TTilde StrömbergHanna | Hanna |
| FFrank StrömJocke | Jocke |
| MMartin RuotimaaAnders | Anders |
| VVincent StridssonPeter | Peter |
 Thomas HedengranRektorn | Rektorn |
| MMonica RannebergVera | Vera |
| MMikael StridssonTorkel | Torkel |
| AAnnika UtterströHotellreceptionist | Hotellreceptionist |
| OOden NilssonNiklas | Niklas |
| JJimmy SeiersenKommissarie Karlsson | Kommissarie Karlsson |
| EEmilia NilssonKlara | Klara |
| OOlivia BäckströmFlicka med hund | Flicka med hund |
| SSven SelbergHund | Hund |
| AAsif RezaeeOrdningsvakt | Ordningsvakt |
| HHenric BrandtStäderska | Städerska |
| KKicki BackebjörkErika | Erika |
 Sebasthian "Basse" Wilnerzon ThörnGuy in digital meeting | Guy in digital meeting |
| SSigrid JosefssonElin (archive footage) | Elin (archive footage) |
| UUlrica HedénLinda (archive footage) | Linda (archive footage) |
| TTomas KärrstedtJimmy (archive footage) | Jimmy (archive footage) |
| HHenrik JärvHenrik (archive footage) | Henrik (archive footage) |