A group of twenty somethings meet after a long time, and head to an island for a getaway, class reunion, and a night of partying. During the fateful evening the past begins to haunt them and old grudges from their shared past come to surface. As the night turns awry, they start to fear there might also be something else on the island besides them. During one bloody night old scores are settled, everything is brought to the surface, and revenge is had.
Unfortunately the movie Insanity is not yet available on Disney Plus.
| Camera | Eero Heinonen | Director of Photography |
| Art | Rose Juuti | Production Design |
| Art | Anki Lappalainen | Production Design |
| Sound | Jukka Åkerman | Original Music Composer |
| Sound | Juuso Heikkilä | Production Sound Mixer |
| Directing | Miska Kajanus | Director |
| Production | Brandon E. Johnson | Executive Producer |
| Editing | Miska Kajanus | Editor |
| Production | Carlos Butler | Executive Producer |
| Production | Vera Melleri | Producer |
| Writing | Miska Kajanus | Screenplay |
| Production | Tomi Alapaattikoski | Executive Producer |
| Editing | Vertti Virkajärvi | Editor |
| Production | Miska Kajanus | Executive Producer |
| Production | Antti-Veikko Salo | Producer |
| Sound | Jukka Åkerman | Sound Designer |
| Costume & Make-Up | Jonna Härkänen | Makeup Artist |
