The film tells the story of a single mother having trouble coping with everyday life. However, she finds in magic and fantasy a way to escape her reality until the enigmatic appearance of a man in her life. He will change her forever, to the point of making the decisions she has always feared. She will suddenly and conclusively have to answer her own question: what do I want? She will be given a chance to correct the mistakes in her life; will she cherish this opportunity or let it slip away?
Unfortunately the movie Messenger Knocks Three Times is not yet available on HBO Max.
| Directing | Elo Selirand | Director |
| Production | Anneli Ahven | Producer |
| Editing | Madis Tüür | Editor |
| Editing | Kersti Miilen | Editor |
| Editing | Elo Selirand | Editor |
| Costume & Make-Up | Kenneth Bärlin | Costume Design |
| Visual Effects | Märt Kivi | Animation |
| Visual Effects | Ragnar Neljandi | Animation |
| Art | Armin Kohlman | Assistant Art Director |
| Costume & Make-Up | Anu Konze | Makeup Artist |
| Camera | Elen Lotman | Director of Photography |
| Directing | Grete Nootre | Assistant Director |
| Art | Jaana Jüris | Production Design |
| Writing | Elo Selirand | Writer |
| Writing | Mihkel Robam | Co-Writer |
| Sound | Erki Pärnoja | Original Music Composer |
| Production | Anneli Lepp | Production Manager |
| Camera | Andrus Prikk | First Assistant Camera |
| Camera | Martin Palm | Second Assistant Camera |
| Camera | Paul Priks | Second Assistant Camera |
| Lighting | Erik Põllumaa | Gaffer |
| Lighting | Sten-Johan Lill | Electrician |
| Camera | Aliine Lotman | Still Photographer |
| Directing | Aliine Lotman | Continuity |
| Sound | Jevgeni Berezovski | Sound Assistant |
| Sound | Ekke Västrik | Sound Assistant |
| Sound | Mart Kessel-Otsa | Sound Designer |
| Sound | Tiina Andreas | Sound Designer |
| Editing | Tanel Toomsalu | Colorist |
| Crew | Merit Hein | Catering |
| Crew | Anne-Mari Neider | Catering |
