It is tough for stray animals to survive in the highly populated Hong Kong, and it is even tougher for mongrels - a breed that is shunned and despised by most. Helen is a volunteer in a dog shelter. She is having a good relationship with the mongrel Cha Siu. One day, Cha Siu causes some troubles which change its life. The manager of the dog shelter has to make a life-or-death decision to maintain the service of the shelter. As unjust as it may seem, the decision is effortless and easy for the manager to make, but the consequence that follows is beyond her wildest dream.

A massive explosion and shootout in snowy Causeway Bay, Hong Kong, reveals a pharmaceutical heir's plot. His father's death in hospital triggers a drug war, destabilizing both legitimate and criminal worlds.

Like a cactus, a marriage is expected to last but not without a few prickly details. While the bride's mother is in bliss over her elder daughter's upcoming marriage, the bride's sister is doubtful after witnessing the groom on the street with another woman. As the bride discovers her fiance's affair, the torrent of events prompts a pointed conversation between the three women, highlighting their contrasted views on marriage and fidelity. The bride is veering towards a meltdown while her sister grows more skeptical of marriage.