Intro. In the sweltering heat of Guangzhou, He Yu (27) leads a monotonous life as the owner of a mechanical workshop inherited from his father. Wrapped in oil stains and a stoic, brooding silence, his world revolves around rusted engines and the oppressive humidity of the garage. Everything changes when his niece, Bella (17), arrives for a summer holiday. Bella is the embodiment of energy—sweet, loud, and restlessly playful.
Her presence in the suffocating workshop begins to erode He Yu’s defenses. Behind the rhythmic clanging of metal, a forbidden tension grows. Bella finds herself drawn to He Yu’s raw, masculine, and mysterious aura, while He Yu struggles against dark impulses rising within. In the midst of the searing heat, the boundary between uncle and niece begins to blur, sparking a forbidden connection fueled by hidden obsessions. Behind the closed doors of the workshop, an intimate secret takes root, defying the norms and morality that once held them in place.