Dharmesh and his family runs a maid agency as well as a motivational organization called "Yaavarum Nalam". Amutha, a new helper from India gets introduced to her employer Saroja who shows much care towards her. However, as Amutha enters her new house, she gets an unexpected welcome which leads to her worst nightmare

Atharvan, a neuroscientist makes his way down to the cemetery together with his friend Mathan, where a startling surprise awaits them. As an urgent board meeting gets called, Shailaja’s health starts to deteriorate which leads to a choice everyone hesitates to take

Yaazhini, a jovial and carefree person leaves her kampong in Malaysia for Singapore due a financial situation faced by her father. As Dharmesh and Atharvan are in a dilemma whether to proceed with the memory swap procedure for Shailaja, Mathan meets Yaazhini for the 1st time

Pavithra gets introduced to Dharmesh family as a potential candidate for Shailaja who shows much hesitation due to her aggressive attitude. While Atharvan gets shaken by his student’s research on RNA, Yaazhini goes on house hunting spree and an unexpected job interview

Shailaja reveals a shocking news to her family which creates uneasiness among them. However, by coincidence she meets Yaazhini who leaves a lasting impression on her. Soon after Pavithra’s former boyfriend Anbu visits her after his release from jail which turns into a commotion

Atharvan gets into an argument with Haarshan for not doing a background check on Pavithra. Shailaja meets Yaazhini whom she requests to be her caretaker which leaves her in a dilemma. Anbu then gives an unexpected surprise to Pavithra which once again creates a stir in Dharmesh’s family

Shailaja gives a surprise to her family by introducing Yaazhini. As Anbu and Pavithra reunites again, Dharmesh makes an unexpected visit with a job offer. Yaazhini gets a nightmare which starts to take a troll on her

Yaazhini makes a critical mistake affecting Shailaja’s health much to the dismay of Dharmesh. Anbu and Pavithra plans for their future together, unaware of the sinister plot happening right behind their backs

As fate leans towards to the darker side, Athipathy’s family begins the preparation for their next memory swap ritual. Soon after, Dharmesh plots a plan against Anbu who had been trusting him all along which then takes a sudden twist in their marriage plans

Mathan and Yaazhini’s relationship begins to bloom as they start to understand each other better. Following Pavithra’s capture for the memory swapping process, an unexpected discovery shocks Athipathy’s family. While Pavithra is given a deadly choice, Shailaja reveals her ideal memory swap selection

Pavithra is found to be pregnant which halts the memory swap process. Anbu begins to realize something was amiss following his murder accusation and returns to meet Dharmesh. Soon after, Atharvan gets an unexpected memory swap request from a client

Yaazhini hears a cry for help in the house which she tries to investigate. Meanwhile, Anbu comes across the man whom he once thought he had killed. Atharvan begins to feel that something was amiss and starts to work on a backup plan.

Mathan and Yaazhini finally confess their feelings for each other. While Atharvan strongly disagrees with performing the memory transfer on Yaazhini, Shailaja comes up with another idea. Meanwhile, Ruben reveals his discovery to Atharvan which give him a surprise

Anbu tries to find for Pavithra in Dharmesh’s house, however unknowing to him a trap had been set for him. While Pavithra gets a devastating surprise, Mathan and Yaazhini tries to investigate the backend story of Anbu and Pavithra

Mathan and Venky make a shocking discovery at Anbu’s hidden chambers. However, things get more stranger as Mathan visits Saroja’s house only to witness an unimaginable act. While Atharvan then tries to rectify the situation, Dharmesh has other plans for Anbu and Pavithra

Atharvan comes to realize that Saroja's original body is still being kept preserved by her son. Meanwhile Haarshan starts to sympathize with Pavithra and tries to help her much to the dismay of his family. Mathan makes yet another shocking discovery in his quest to seek the truth.

Mathan, Yaazhini and Venky come up with a plan to find out the truth behind the mystery of Saroja. Meanwhile, Shailaja makes an unexpected announcement which creates a stir in the house. However, a bigger shock awaits for Yaazhini who happen to chance upon the secret door

Haarshan gets attacked by Anbu which leads to Code Black activation. Meanwhile Mathan finds out that Saroja is alive but is horrified to learn about the plan her son had crafted for her. As Mathan and Yaazhini’s engagement takes place, Mathan continues to feel uneasy about the events occurring recently

Atharvan and Mathan gets into an argument causing a rough barrier between them. Soon after, a devasting news shatters the Athipathi family creating confusion and fear amongst them. An urgent board meeting gets called upon again which leads to a harsh decision

Just when dark clouds loom over Atharvan’s future after being suspended, he sees a silver lining in his student Reuben, who pledges his faithful allegiance. Dharmesh wants to silence Amutha forever, but his plan goes awry when an unexpected video is leaked online

Despite Shailaja’s rapidly deteriorating health, Yazhini decides to leave, ignoring Shailaja’s repeated threats and warnings A guilty Haarshan releases Pavithra and Anbu asking them to leave before the police arrive. Venky convinces Mathan to leave the country by disclosing secrets that have been hidden from him. Mathan is conflicted with emotions of friendship and betrayal like the two sides of a coin

After much time has passed, Rosa is in the limelight for publishing her book about the Athipathy family. Mathan gets emotional about his daughter and his unrequited love and shares his heartache with Venky. Rosa’s happiness is short lived as she receives a surprise package with a hidden message that only she understands

Ruben starts to behave like a fish out of water when a potential bride is introduced to him which puzzles his family. Yaazhini pays a hostile visit to Rosa. They are both shocked to discover a cryptic message left by an anonymous person. Meanwhile, Anbu tries to break out of his shell and meets Sajna at his bar

Steve notices Pavithra’s strange behaviour when she is recognised by an acquaintance. Rosa, Venky and Yaazhini decipher the cryptic message and the person behind it. Later, Mathan loses his cool with Rosa as she provokes him with an interrogation