Bengi, a young journalist, receives anonymous videos showing victims answering a knocking door. Each ends when they look through the peephole. Investigating, Bengi discovers hidden messages in the videos. When her door knocks the same way, she films the peephole.
| Actor | Role |
|---|---|
 Seren Deniz YalçınBengi Yılmazer | Bengi Yılmazer |
| ÖÖzkan ÖzenCaner | Caner |
| TTufan ElitaşCult Member | Cult Member |
| SSeray YurtkuluPelin | Pelin |
| ZZeynep GüngörJournalist | Journalist |