Seher (Ayesha Takia) - she can imitate a thousand different cartoon characters and that's what makes her such a wanted dubbing artiste. Then she finds herself wanted in a different sense altogether - by gangsters, by taxi drivers and by the cops - as a murder suspect. ACP Rajvir Randhava (Ajay Devgan) - He is brave, bad corrupt cop, who loves his ice cream cones as much as he loves chasing criminals. But what he loves most is letting them off for a hefty bribe! Then suddenly Rajvir finds himself embroiled in a murder mystery where the prime suspect is none other than his fiancee Seher. Ballu Taxi driver (Arshad warsi) - His red Ambassador taxi is just like him - bright, optimistic and full of beans. He has no hassles about stuffing too many tourists into his taxi or giving a lift to a strange, giggling girl in the middle of the night. What does bug him is when the girl disappears without paying him his fare.
Kumar, ballu's buddy (Irfan Khan) - Ballu's bumchum and budding actor. He can play lawyer, Ravan, Dracula, Don at the drop of a hat, but when he meets a girl who claims she's a dead woman, he drops all his acts and scoots like hell.
Director Rohit Shetty's love for cinema can be witnessed from his genre of movies. After ZAMEEN & GOLMAAL the new one being SUNDAY in his kitty. His GOLMAAL changed geners totally and embarked on an out and out comedy with a multitude of stars. With SUNDAY he does a suspense comedy, as full of twists as it's full of laughs.
A dead body found floating in a lake... Unexplained scratch marks on her neck... Supari killers out to kill her... A taxi driver who yells 'bhoot, bhoot' every time he sees her... Seher, a versatile dubbing artiste, gets first amused then mystified and then terrified when she realizes she has a connection with all these totally uncanny unconnected array of incidents. But unpalatable part is she cannot remember anything. Her fiancé ACP Rajvir Randhava is convinced that Seher is innocent, but he is equally sure that she is linked to everything but at the same time she cannot remember anything.
Then another dead body is found. And the bracelet found near the corpse belongs to Seher. The evidence is mounting and all the fingers point at Seher. And still, Seher does not remember anything.
A dubbing artiste by day, is she also a serial killer by night? Is her bubbly charm but a mask that hides her darker, meanacing self? As Seher desperately fights the fog that clouds her treacherous memory, ACP Rajivir has to fight the fact that the woman he wants to marry well be a murderer and worse...
What if one day went missing from your life? To know how this puzzled mystery is surmounted check on 1st February 2008.