There's no mystery about the big wins on offer in this thrilling new Feature Guarantee 25-line murder mystery-themed slot game. Return to the scene of the crime, to find a game filled with intrigue, suspense and more features than you can poke a candlestick at. Was it the Butler? The Lady? Perhaps the distinguished looking Gentleman? Trigger the Free Games Feature with 3 or more €˜It's A Mystery!“ symbols and find out for yourself by completing the multi-round Puzzle Portrait Feature. Up to 50 free games with prizes x 6 are on offer, with an additional bonus of up to 500 times your total bet for completely unscrambling a portrait. The unique Feature Guarantee system ensures a feature every 150 spins if you don“t trigger one randomly, and the Win-Win Feature will top up any poor-paying free games. Make bad feature wins and long feature dry spells a thing of the past with It's A Mystery! from Real Time Gaming.