The theme is a love story about a private detective (Kenneth Ma), who goes through an overlap of love stories, each accompanying the unique atmosphere of the four seasons (spring, summer, autumn, winter), bringing out different views on love, human nature and life. A total of 4 stories, 5 episodes each: Him & Toby (Spring - Romantic Fantasy); Kate & Ron (Summer - Passionate Heat); Nancy/Oscar/Vincent (Autumn - Hopeless Grieve); Kenneth & Myolie Wu (Winter)]