'Drishyam' malayalam movie is a copy of 'Suspect X' movie

Mohan lal 'drishyam (2013)' movie is a copy of Japanese movie 'Suspect X (2008). Malayalam director Jeethu Joseph is the director of this film. starring mohan lal and meena. 

Analysis:In japanese film Shinichi Tsutsumi is a mathematician ,who lives next door of Yasuko Matsuyuki. Keishi Nagatsuka is the ex-husband of Yasuko Matsuyuki shows up one night to extort money from Yasuko, threatening both her and her teenaged daughter Misato, the situation quickly escalates into violence and Togashi is killed by mother and daughter on the apartment floor. Finally the maths professor Shinichi Tsutsumi how to saved that family with his intligence.. 

This story is brilliantly adopted in malayalam by Jeethu Joseph slight changes. that next door mathematician character as changed as george kutty for the nativity problem, who changed that mohan lal character as meena husband and the ex-husband character changed as a stranger.That type of tricky screenplay used by Jeethu Joseph. He applied that kind of tricky screenplay for his last 3 films also.