When a Dog Loves a Cat (Traditional Chinese: 當狗愛上貓) is a TVB modern drama series broadcast in July 2008.

Chow Chi-Yu (Myolie Wu) found 大巴 wandering on the streets and brought him back to her father's kennel.

Her brother, Chow Chi-Jim (David Lui), and sister-in-law, Shui Tin-Lan (Margie Tsang) opened a pet shop to earn money for the family.

Yu starts her first day of work at Raptor Advertising Company alongside her boyfriend, Carson Ying Hoi-Leung (Raymond Wong) and Chun.

Kit Man Chi-Kei (Bernice Liu), the boss' daughter, returns from the United States and is given full responsibility of Raptor.