On a lush, remote island, a reality game called Mystery Island: Winner Takes All gathers a motley crew of contest winners competing to solve a staged murder and claim a life-changing prize. What begins as a theatrical whodunit—complete with clues, locked rooms, and cameras recording every confessional—quickly turns dangerous when an employee is found truly dead. As the line between performance and reality blurs, alliances form and fracture under the weight of suspicion.
With the island cut off from the outside world, the contestants must become amateur sleuths while also fighting to prove their own innocence. Secrets about the production, the staff, and each other surface, revealing motives that run deeper than the game. Tense, twisty, and driven by moral ambiguity, the film explores how far people will go for fame, fortune, and survival when the rules unexpectedly change.