TKKG - The Secret of the Mysterious Mind Machine(2006)

TKKG - The Secret of the Mysterious Mind Machine is a German detective film following a group of young amateur sleuths as they uncover a sinister mystery. When Kevin, a science competition winner, behaves erratically while presenting his invention called the Mind Machine, his friends initially assume relationship troubles are to blame. But when Kevin's girlfriend Nadine vanishes without a trace—joining three other missing children—TKKG realizes they're facing something far darker. The teens must put their detective skills to the test, working alongside police to solve the disappearances before more children go missing. Blending mystery and suspense, the film captures the resourcefulness and courage of young investigators determined to crack a dangerous case.