Cult of the Planet of the Apes (1999)

A business man is attacked by a man in an ape mask and killed. The masked man runs off. Roddy is taunted by his two housemates, Doug and Pete, over his obsession with Planet Of The Apes films. Later, Doug hears a strange noise from Roddy's room and goes to investigate. He is attacked by someone in an ape mask. Pete returns from a football match with Roddy's brother, Zak. They find Doug sitting in front of POTA film on the TV. He is dead. They are attacked by the ape man, Zak having his neck broken. Pete pulls the mask off to reveal Roddy, who runs off. Pete vows vengeance and pursues with an axe. Whilst on the run Roddy attacks a girl in a subway. After an all night chase they meet on a footbridge.. "All humans must die!" Says the insane ape mask wearing Roddy. They fight. Pete beheads Roddy with the axe. He stands contemplating what he has done whilst he is being watched by someone else with the same ape mask that Roddy had. Roddy was not alone.