Kangaroo is about a man's excessive affection for his sister and given Samy's earlier track record with films that had incest as the theme (Uyir and Sindhu Samaveli), this one too could have turned into something similar, but this time, the director changes track just a bit and ensures that things stay well within the line of accepted social mores. Instead of an incestuous character, we get an extremely possessive one. The character of Kangaroo, at least initially, seems like that of the ruffian with a golden heart — a little bit of Paruthiveeran, Ayyanar from Samy's own Mirugam and Mayandi fro...