The Fifth Floor

Sue Wong, thriving in her career and engaged, longs for reconciliation with her parents after a 20-year-old family tragedy. When a young girl disappears, it resurfaces past wounds, forcing Sue to confront her trauma and seek healing with her family.

Meng Teck, with new conviction that his daughter might still be alive gets help from someone from the past who's returned to Singapore. However, Sue thinks her father is being led on another wild-goose chase.

Sue uncovers corruption in a charity, but her editor won't publish it. Ed urges her to expose them herself. Nick helps Meng Teck investigate a note, discovering Meng Teck's neighbor might be keeping a prisoner.

A missing girl returns after 14 years. Details of her abduction leads to Meng Teck eager to talk to her with hopes she might gives them some answers about May's own disappearance.

Candidate Vikram Chandran's wife from his past accuses him of rape, and Sue and Ed's relationship deteriorates. Meng Teck and Nick focus their investigation into May's disappearance on a new suspect, revealing possible dark connections.

A surprising discovery pressures Vikram to withdraw from the presidential race. Nick may be done helping Meng Teck, but Sue asks for his help as her relationship with Ed reaches a breaking point.

In a struggle with Ed, Sue accidentally kills him. Nick persuades her to confess, but Ed's body vanishes, and there's no trace of his identity in any database. It's as if he never existed.

Informant entrusts Vikram with evidence of unethical practices by a major pharmaceutical company, practices that put innocent lives at risk. Nick investigates Ed and finds clues that indicate he may have been a spy.

For the first time in 20 years, Sue comes face to face with May. But May isn't who Sue remembers her to be, and she's back with a vengeance. What does May want and can Nick keep Sue safe from her own twin sister?

Sue and Nick learn of May's mission, leaving Sue scrambling to protect a friend. Vikram is torn between exposing Ikarus Global and protecting his election, but someone on his campaign isn't loyal.

Sue and May become estranged as new details about the missing sister are revealed. Vikram loses support in the polls but remains confident in his own merits. Ann, worried, takes action, while Nick makes a shocking discovery in the Cypress files.

An unexpected twist thwarts Sue's rapprochement with her sister, putting the twins in a critical dilemma. Meanwhile, Vikram feels betrayed by Ann, leading him to question his trust in her and rethink his alliances.

Completely distraught about what she has done, Sue finds ways to cope with it. The twins and Nick find out there's more than meets the eye when Salif tries to stop Ann from getting sworn in as the new President.