Veppam

Revathy drowned herself after discovering the drugs that Karthik had hidden in his cupboard. Fearing for her safety and trying to destroy the evidence of the illegal activity, she took the drugs to the beach and dissolved them in the ocean. However, she either drowned accidentally while doing this or chose to end her life, overwhelmed by the dangerous world her friends were involved in.

Earlier scenes show Revathy's close bond with Karthik and her concern for his safety, hinting at her willingness to protect him even at personal cost.

Jyothi exploited Vishnu's desperation for money and his love for Viji, a call girl. Knowing Vishnu struggled financially and dreamed of a better future, Jyothi promised him Viji's company in exchange for transporting drugs to Pondicherry. Vishnu was desperate enough to accept, even enlisting Karthik's help for the dangerous task.

Vishnu's financial struggles and his love for Viji are established early in the film, making him vulnerable to Jyothi's manipulation.

Vishnu's guardian was greedy and wanted to sell Vishnu's mechanic shop, which was a precious memory of Vishnu's late father. When Vishnu refused to sell, the guardian killed him to take ownership of the shop and profit from it. This murder happened while Karthik was unconscious after their fight.

Vishnu's guardian is shown pressuring him to sell the shop throughout the film, establishing his greedy intentions.

Viji fell into deep depression after Vishnu's death and succumbed to grief. Her death was caused by emotional trauma rather than physical violence, highlighting the devastating impact of the criminal world on innocent people connected to Vishnu.

Viji's love for Vishnu is established early, and she previously tried to warn him about Jyothi's dangerous plans.

Karthik was arrested because the police believed he could be responsible for Vishnu's murder. After the chaos at Vishnu's house where Karthik was present during the confrontation, the police suspected him as the culprit. However, he was later released with Jyothi's help.

The confrontation between Karthik and Vishnu at Vishnu's house, where Karthik was injured and knocked unconscious, created the circumstantial evidence against him.

Balaji poisoned Jyothi because he held their father responsible for abandoning the family in childhood and for causing the chain of events that led to Vishnu and Viji's deaths. Balaji accused Jyothi of destroying their lives through his criminal activities and demanded justice for the suffering he caused.

Balaji's anger toward Jyothi is evident throughout the film, especially when he confronts Karthik about associating with his criminal father.

Karthik joined Balaji in killing Jyothi because he also blamed his father for the death of his friend Vishnu. After everything Jyothi had done, exploiting his friends, causing tragedies, and abandoning his family, Karthik chose to seek justice alongside his brother, even though it meant killing his own father.

Karthik's anger toward Jyothi grew after learning how Jyothi had manipulated Vishnu into danger, leading to his death.

Revathy found the drugs in Karthik's cupboard and, fearing for his safety, took them to the beach where she dissolved them in the ocean. This explains why she was at the beach at the beginning of the film and reveals her attempt to protect Karthik by destroying the evidence of his involvement in the illegal activity.

The opening scene shows Revathy at the beach before her death, hinting at her connection to the drugs long before the truth is revealed.

After abandoning his family and turning to alcoholism, Jyothi became involved in criminal activities to make money. He worked for a drug peddler named Ammaji, supplying call girls to men in the slum and transporting drugs. This lifestyle brought danger to his sons and their friends.

The film establishes early that Jyothi is a drunken, irresponsible father who chose a life of crime over caring for his family.

Karthik left his house because he felt misunderstood and overwhelmed after Balaji physically assaulted him during their confrontation at the bakery. Balaji was angry and worried about Karthik's association with Jyothi's criminal world, but Karthik felt caught between his brother and his loyalty to his friends.

The tension between Balaji and Karthik over their father's influence is a recurring theme, building to this breaking point.

When Revathy's father suffered a heart attack and was hospitalized, he desperately tried to contact Karthik and Vishnu to ensure their safety, likely wanting to warn them about the dangers they were in. This highlights Revathy's father's concern for the young men he had helped support over the years.

Revathy's family had helped support Balaji and Karthik through their childhood, showing their ongoing investment in the brothers' wellbeing.

When Karthik, Balaji, and Jyothi went to confront Ammaji, they discovered that her enemies had now allied against her. This was because Jyothi had been selling drugs to Ammaji's enemies, creating a conflict that put Ammaji in a vulnerable position. The enemies turned against her, allowing the brothers to exact their revenge.

Earlier scenes reveal that Jyothi planned to sell drugs to Ammaji's enemies, which would have escalated violence in the area, Viji tried to warn Vishnu about this.