The story follows Joanna, a young entrepreneur accused of being the mastermind behind a locked-room murder case involving her lover. To clear her name, she gathers clues with police officer, Zheng Wei. But as they investigate further, they discover another murder case that involves Joanna and her lover… Will the truth come to light? (Source: lifestyleasia.com) ~~ Remake of the Spanish movie "The Invisible Guest" (Contratiempo) [2017].