Highlighting the point where threshold breaks for every young couple, the dispute between dreams and duty is highlighted in its niché in this scene. The point where it touches you strongly emotionally is their breakup. Amy and Dhanush share a juvenile, lively chemistry their rapture is one that captures the spark and energy of first love. The first forty minutes are spent in fun and romance. When no one understands why, the film is the story of Tamizh uncovering truth and finding answers, as a ‘Thangamagan’. The happiness cracks down from its pinnacle, one fine morning, when Tamizh''s father commits suicide. Over time, Hema and Tamizh fall apart, and eventually Hema gets married to Aravind Tamizh finds Yamuna (Samantha) and they are two happy families.
While Sathish and Dhanush get along in wooing the lady love, Aravind feels left out and leaves their company hastily but willingly. All is well till Tamizh is smitten by Hema (Amy). Son of a simple middle class family, Tamizh (Dhanush) is a happy-go-lucky lad, roaming about with his best bud (Sathish) and his cousin Aravind. Does the spirit of VIP sustain through to ''Thangamagan’'' too? Family drama, romantic sweet tale, or a mystery story? Gear up for a roller coaster entertainment that is '' ‘Thangamagan’.
Velraj is a director-turned-cinematographer who created a revolution in his debut directorial. However, ''‘‘Thangamagan’’'' is not the ordinary rigmarole. Two heroines, two phases of life - the instinctive prediction is that it is a typical romantic saga.