11 parts Complete Eight contestants, four couples from different parts of the world, are invited to Japan to compete in The Lovers' Challenge, a mysterious and luxurious reality-style competition promising $2 million to the winners. The invitation describes it as "a once-in-a-lifetime test of loyalty, courage, and love."
But once they arrive, the couples slowly realize the truth: it's not just a test of love - it's survival. Every challenge that ends in failure doesn't just eliminate a couple... it kills them.