One day Pak, a taxi driver who refuses to retire, meets Hoi, a retired single father, in a park. Although both are secretly gay, they are proud of the families they have created through hard work and determination. Yet in that brief initial encounter, something is unleashed in them which had been suppressed for so many years. As both men recount and recall their personal histories, they also contemplate a possible future together.
When a terrorist who specializes in explosives takes hold of an underground tunnel, he threatens to kill hostages if his demands are not met.
In Hong Kong, Dr. Gao Jing is introduced to photographer and diver Dave Chen Guo Dong. They fall in love and Guo Dong invites Gao Jing to travel to Taiwan to visit an ancient submarine city, where he intends to propose. During the dive, Guo Dong vanishes, and Gao Jing is unable to recall what happened underwater. Her investigations open her eyes to something far more than she ever expected.
Lung, a hardworking property agent, is facing a serious situation in life. His girlfriend won't marry him unless he can buy her a 1000-sq ft. apartment in one year’s time; whilst Charlotte desperately needs a place to stay after her divorce. Along with Lung’s intern Very, a mainland rich, they become co-owners of the office girl Hak’s small flat that was left to Hak by her estranged mother.
An unexpected inspector drops by a lavish party of a notable family in order to investigate the suicide of a pregnant girl. This breaks the joy and peace of the party which is meant to celebrate a couple's engagement. Everyone claims that they do not know the girl. However, the inspector does find something suspicious there with the help of a diary and a photo. An astonishing truth is gradually revealed: six of the noble family members are closely related to the girl's death.
On New Year's Eve, Qingyi and her son, Dawa, were waiting for her husband to come home from work but he never showed up. Meanwhile, Dawa keeps seeing a stranger who is invisible to Qingyi. Leaving Dawa under the care of her neighbour, she heads to the village to find out her husband’s whrereabouts. Qingyi returns home and sees a stranger hiding in her house…
After suffering life changing injuries in the line of duty, bomb disposal officer Fung turns his back on the police. But when a devastating series of bombings sweep Hong Kong, the police suspect their former ally may be involved after he is found unconscious at a crime scene. Now faced with memory loss and recalling only fragments of his former life, Fung sets out to uncover the truth and find out who he really is.
Lok, an investigator of ICAC, probe a bank exec's crypto market manipulation. Discovering the bank's ruin and a kidnapping ransom in crypto, Lok suspects a deeper conspiracy and vows to catch the mastermind.