To big brother Dai, nothing is more satisfying than dining with his two younger half-siblings. But when his old flame shows up as his brother's girlfriend, kitchen nightmare strikes and it's up to his part-time girlfriend to simmer down the situation.

For his project under the lauded First Feature Film Initiative programme, director Ka Sing-fung tells the heartrending journey of a woman whose life is forever changed by the children she takes in as a temporary foster carer. In a career-best performance, Sammi Cheng stars as Mei, a woman trying to get over the death of her young son through the children she welcomes into her home. Each ward offers Mei a different challenge and a newfound appreciation for the difficulties of motherhood, but when her dedication to the job causes her marriage to turn sour, Mei is forced to make a choice.

Ten-year-old Kwong is a Primary 5 student who has to contend with "Internal assessment for Secondary Places" and parents who constantly argue. He is at a loss. His grandma, who lives alone, is always patient and happy to learn about his world. Grandma passes away suddenly, Kwong suffers from insomnia. At night, when he looks at the boundless sky, he feels secure, as if many friends are talking to him. He keeps all this to himself. To his parents, Kwong is just a naughty boy. They have no inkling that Kwong may be experiencing emotional problems.

Mr. K.K. Ho (starring Vincent WONG), is a leading “star tutor” with remarkable achievements. Lee Lung Kei (starring Hugo NG), the stingy boss and principal of the cram school, regards Mr. Ho as a trump card. Chloe (starring Jennifer YU Heung Ying), a traditional high school teacher, has always tried her best in teaching. Chloe despises K.K.’s teaching methods and refers to them as deviant. The two of them give tit for tat in class. Their conflict leads to K.K.’s appreciation for Chloe. He gives her flowers as an apology, but Chloe never accepts. He finds out Chloe is the daughter of Principal Lee. When she was young, she witnessed her mother being bullied and died by accident.

The Winter Solstice has been for the Chinese an important family occasion; however, will this time-honoured tradition become obsolete? The children head back to their family home in the country to see their elderly mother. All seems well on the surface, but each faces their own crisis and difficulty: The eldest brother struggles to raise several kids; the well off second sister plans to leave Hong Kong; estranged from her husband, the younger sister keeps up appearances; and the youngest brother commits to the difficult career as a farmer. The cheerful, animated conversation at the dinner table is overshadowed by simmering anxieties.

In a small town, the funeral of a matriarch brings about the reunion of family members, many returning to the village after leading new lives elsewhere, some no longer speaking the language of the native land. With the passage of time, the big clan becomes fragmented as members, like other modern Chinese in mainland China, face changes in lives, ideals, and family structures. The occasion becomes a hot ground for deals and negotiations that are inevitable amid the rapid development of China, where family members prosper while relationships become calculated. Still, a funeral procession amid an impending storm requires them, already down different paths, to walk together.

Mommies tells an emotionally compelling and complex story of two interwoven mother-and-son relationships. Sally works as a hostess, a kind of life her unruly son Keith loathes and from which he seeks refuge through self-harm. Keith looks with longing for the seemingly happy and loving relationship between mentally-ill Mandy and her son Luke. Yearning to become part of the other family, Keith wishes Mandy were his mother instead. But will that ever be possible? The sympathetic Mandy and Luke try to help Keith, and when they think things are looking better... Subtly told, Mommies captures the human condition of Hong Kong people’s lives seldom seen.