In 1995, Song Zhao, a young backbone of the Procuratorate, was preparing to marry his fiancée. Three days before the wedding, his ex-girlfriend Zhou Qing, who had disappeared for six years, suddenly returned to China and became his fiancee's best friend. Song Zhao, who had mastered self-restraint and restored etiquette, was drawn into the so-called "Truth or Dare" game. The true talk revealed the secrets he had never told anyone, and the big adventure asked him to cover her drink in public, and his glamorous disguise was gradually torn apart. On the surface, he advances and retreats according to the rules, but secretly he uses the meticulous thinking of a prosecutor to investigate her motives for the game and her details abroad. Every seemingly passive cooperation is his backhand to attack. He has a cold-blooded mind and is extremely possessive of only one specific person. When the truth came to him and he was asked to say, "What I regret most in my life is breaking up with you," he changed his words with a smile: "The only regret I have in my life is that I didn't keep you in jail." Zhou Qing's face suddenly changed. This man's game is always about winning or winning all.