Lu Cheng has followed his childhood friend Jiang Chuan since he was young, following him even in proposing a divorce. Little does he know, his wife Song Yan has already prepared an agreement, bought him twenty million in insurance, and urged him to drive car number seven alone up Beicang Mountain Road. Jiang Chuan notices something abnormal, snatches the car keys, and a conspiracy revolving around insurance, fund transfers, fake guarantees, and staircase framing gradually surfaces. From blind trust to joining forces for a counterattack, Lu Cheng ultimately uncovers the scheme of his wife and her first love, reclaiming his company, his child, and the direction of his life.