hardik (kunal khemu) and luv (vir das) are two dope-heads, living with their roommate/friend bunny (anand tiwari). after hardik loses his job and luv gets dumped by his girlfriend, both decide to tag along with bunny to goa to relax. in goa, luv falls for luna (puja gupta), and she invites the guys to a rave party, organised by the russian mafia, which is being held on a secluded island. at the party a new drug, d2rf, is launched. none of the friends take it as it's very expensive. the next morning, the three roommates find that the island has been infected by zombies, and the three men save luna from her villa and stay together in hopes of surviving. a russian mafioso, boris (saif ali khan, originally from delhi/dilli), arrives and reveals himself as a zombie slayer.