在这部蓝天白云剧情片中,《藍天白雲》故事講述一宗迷離殺人事件。
中學生Connie (梁雍婷 飾)，Connie天生患有心漏病，朋友不多，計劃謀殺雙親卻自知體弱，因此決定將同班同學Eric (顧定軒 飾)拖下水，兩人成為共犯。Connie於弒親後毫無悔意，案件由重案組女探員Angela(鄧麗欣 飾)接手調查。
新婚的Angela與患有⽼⼈癡呆症的⽗親(黃樹棠 飾)及老公Tony(李任燊 飾)一起生活，剛懷孕的Angela看似擁有幸福美滿的家庭，卻發現自己的情緒愈來愈受案件影響，慢慢地她似乎開始了解Connie為何會走上這條不歸路…
Angela is a cop in charge of the murder of a married couple. Her father, who suffers dementia, has always been a pain in her neck. Sensitive from pregnancy, Angela discovers strange aspects of the murder while investigating Connie, a high school girl who turns herself in. Connie, born with a heart defect, is close with Eric, her gay classmate. Upset by her violent, perverted father and indifferent mother, Connie conspired with Eric to commit the crime. With Angela's crises-her husband, and her father with Alzheimer's-at its core, the film follows Connie's testimony on the shocking murder. The film resembles a documentary, rather than crime or detective movie, as it reenacts what has happened bluntly and faithfully. It is probably due to the director's background in documentary film. The opening sequences from the distant view of Hong Kong to a lone old man lost in the streets, and the dark and gloomy flashbacks from Connie's testimony read as the sentiment of today's Hong Kong.
看得到却摸不到的蓝天白云。有人说，这部影片改变了他对香港电影的看法。人有病天知否。触目惊心。情绪收放自如。爱就像蓝天白云，晴空万里，突然就什么都没了。可能是近期最震憾的香港電影。狮子山下的伦理惨案。压抑。身边有个一个杀人犯已经见怪不怪。
