Thanga Magan (English: Golden Son) is a Indian family drama film written and directed by Velraj. Produced by actor Dhanush, it stars himself in the lead role, alongside actresses Samantha Ruth Prabhu and Amy Jackson.
The film opens with Tamizh (Dhanush), his wife Yamuna (Samantha Ruth Prabhu) and his mother (Raadhika Sarathkumar) moving into a new home which is not very comfortable. Tamizh leaves them with his friend Kumaran (Sathish) after settling them in the new house in search of a job. All the companies are pleased with his resume but are hesitant to give him a job due to the occurrences in his past job. Finally, out of need, Tamizh becomes a worker in a roadside biriyani shop. He comes home for the night after he gets drunk. He then narrates the reason for him becoming like this through a series of flashbacks.
During his college days, Tamizh (a second year B. Com student), Kumaran, and Tamizh's cousin Aravind (Adith Arun) were inseparable friends. One day, Tamizh's mother tells him to go to the temple for a pooja. There he meets Hema (Amy Jackson), who is an architecture student, and immediately falls in love with her. He then follows her around and wins her heart and they both fall in love. For their first anniversary, Tamizh, Hema, Kumaran and Hema's friend Revathi go to Darjeeling. Tamizh was doing all this without the knowledge of his father and Aravind, for which Tamizh feels guilty. He decides that he will tell them both the truth once he goes back to Chennai. But in Darjeeling he is faced by Aravind, who followed him to see what he was up to and make him feel guilty. Aravind says he never wants to see Tamizh again and storms off. Then they both go to the rooms and Hema gives Tamizh a plan of their future house. Tamizh sees that there is no room for his parents in their new house. He asks Hema about this and she says they will not be staying with them. This infuriates Tamizh and they both fight, eventually leading to their breakup.
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