The Fifth Floor - Season 1 (2018)

A missing girl returns after 14 years. Details of her abduction leads to Meng Teck and Siew Leng eager to talk to her with hopes she might gives them some answers about May's own disappearance. Meanwhile, Sue enlists Nick's help to get rid of evidence of her dark, little secret.

A woman from presidential hopeful Vikram Chandran's past returns, claiming that he raped her one year ago. As Sue and Ed's relationship deteriorates further, Meng Teck and Nick zoom in on a new suspect in their investigation into May's disappearance.

A surprising discovery puts the pressure on Vikram to withdraw from the presidential elections. Nick may be done helping Meng Teck with his investigation, but he's not finished with the Wongs - Sue soon finds herself asking for his help as her relationship with Ed reaches breaking point.

In a struggle with Ed, Sue accidentally kills him. Nick persuades her to turn herself in, but when the police investigate, Ed's body has disappeared. Sue is shaken to learn that there is no trace of Ed's identity in any database - for all intents and purposes, he never existed.

A whistle-blower entrusts Vikram with evidence of unethical practices by a major pharmaceutical firm - practices that endanger innocent lives. Meanwhile, Nick investigates Ed, and finds clues that 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 - a revelation that leaves Sue reeling and scrambling to protect a friend. Vikram is torn between pursuing the expose on Ikarus Global and protecting his election, but not everyone on his campaign is working for him.

Sue and May's relationship continues to strain as the former learns more about her long lost sister. Vikram starts to lose his lead in the polls but he adamantly believes he will still be voted for his merits. Ann, on the other hand is worried and decides to do something about it. Nick makes a shocking discovery when he gets a look into Cypress's files.

An effort by Sue to bond with her sister is thwarted by an alarming turn of events. This leads the twins to a grave dilemma. Meanwhile, Vikram feels betrayed by Ann which leads him to question his trust in her.

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.