Raj Malhotra, Vikram Chopra and Yogi Mathur are best friends and business partners who are married to Sanjana, Shivani and Maya respectively, and live in Vancouver, Canada. The three of them constantly cheat on their wives with not one or two but many women. However, while Yogi is the only unsuccessful one due to Maya having a secret friend spying on him, Raj and Vikram are able to get away with their flirtatious behaviour by fooling their wives and keeping them under check.
One day, when the three wives, who are also friends, meet up, and Maya brings up Sanjana’s issue about a free necklace due on Raj when the two met previously that day in a mall, she and Shivani insist on Sanjana having a private detective, Kishan Khurana, Maya’s “friend”, solve the problem. However, when Maya arranges a meeting between them, things don’t seem to work out because Sanjana happens to rubbish away Kishan’s accusations against Raj. This compels Kishan to try exposing Raj by calling all his girlfriends to the New Year’s Eve party, but Kishan’s plan goes haywire when Vikram steps in and saves Raj.
Confused to the next day, Raj and Vikram suspect a spy being part of the scandal that was about to occur last night and seek help from friend and Canadian Security Intelligence Service agent KD, who instead suggests hiring a private detective as the matter is too trivial and unprofessional for an intelligence agency to handle. However, as fate would have it, they land up at Kishan’s place, and, having recognized him from the party, enlist his help. Kishan, who is apparently crushing on Sanjana, decides to engage Raj and Vikram in a double game, which results in the duo mistakenly assuming Yogi as the informer after Kishan shows them a doctored video of Yogi conversing with Sanjana, and ceasing their friendship with him by exposing him on one of his cheat dates. Later that day, he creates a fracas for Raj by nearly exposing him as a cheater when he is caught in a bathing robe, but Vikram again comes up with an idea, this time about having Raj pose as an undercover cop in the CSIS, who was unintentionally exposed during a “mission” for KD, who played his boss, and was responsible for killing dreaded don King’s brother. Sanjana believes the story and forgives Raj, later snubbing Kishan over the exposé.
Realizing that something is wrong with the deal, Kishan learns from Yogi about the plan and decides to expose them by staging himself as King and having them assemble blindfolded, with Sanjana and Shivani in attendance. When the truth is out, Sanjana tries to commit suicide, but Kishan convinces her otherwise, and comes up with a plan to reform Raj and bring his loving former self back to her life, part of which is a plan to entice Raj into jealousy by having Yogi inform him and Vikram of Sanjana beginning an affair and relationship with a dynamic, handsome man, who would be none other than Kishan himself.
Eventually, Kishan’s plan of the jealousy game works out well, but trouble brews big time when Shivani, through Kishan’s help, has Vikram thrown out of the house upon having obtained ownership of all his property by getting him to unsuspectingly sign “bank account” papers during the time he was advising a troubled Raj, who made a witness. Helpless and destroyed, the three men turn to Kishan for help again, where they request him to blow the covers of their enemies, and vow to batter their fugitives to death, little knowing that they instead have a common enemy in Kishan, who throws a subtle suggestion about the same which they fail to recognize, and while Sanjana is to keep a fast for Raj, Kishan comes up with his own plan and lures the trio to King’s house after they end up with his jacket. Kishan then arranges the trio to meet King’s wife Maddy, who too is doubting King’s possible affair, but the meeting turns out a disaster when they learn that King is innocent and Maddy starts shooting at King left, right and center for flirting with another girl.