After a breakup, veterinary surgeon Kam Wai Ting moves to Sai Kung with her dog Donut to start fresh. There, she meets animal communicator Wong Sing Yan, and their clashing views on pets spark frequent arguments. When a strange accident gives Sing Yan the ability to talk to Donut, he and the dog form a bond — and Donut reveals Wai Ting’s romantic struggles.

As Sing Yan tries to help, their relationship warms, but an age gap and romantic rivals complicate things. Donut, determined to play matchmaker, only adds to the chaos with his well-meaning but comical schemes.