The concept of the movie is based on a Filipino/pinoy superstitious belief that one should never go home directly after visiting a wake since it has the risks of bringing evil spirits to one's home. To avoid this, one should first shake off (in Filipino, pagpag) or refresh outside or anywhere to take away any curse that may be trailed by the soul of the dead.
After being grounded at home, Cedric escaped from their house with his car and go on a trip with his friends. Unfortunately, he almost bump Leni along the way and decided to stop on the funeral where Leni and his uncles are servicing. Each of them unknowingly breaks the superstitious belief such as not to take out the food from funeral, not to look in a mirror near the dead and many more. After the car was towed, each of them went home without doing the "pagpag" or refreshing first to other places before going home after the funeral. Beyond Cedric and his friends’ knowledge, they brought home a cruel and vengeful spirit.
The ghost haunted them one by one and some of their friends and relatives die one by one in an unwanted way. The ghost of the dead killed them. It was Roman (Paolo Avelino), the dead man in the funeral that they recently went on. The story revealed that before the Roman died, he and her wife Lucy (Shaina Magdayao) called the evil spirit to revive their dead son because of the fire that was caused by the village people since they were already tagged as killers due to the people they have killed just to revive their son.
Unknowingly, the son of Roman and Lucy whom they thought was dead is alive and brought to the church by Lucy's sister Eva (Matet de Leon). He was adopted by Leni without also her knowledge of who are the kid's parents.
Because of the successive deaths, Cedric was forced to team up with Leni in the hope of containing and abating the wrath of the vengeful spirit of Roman and eventually vanquishing it in the process. But as they struggle to succeed, more mishaps occur and they run out of options in saving their family and friends.
Cedric fought Roman after he was revived through the taken lives of the nine victims including his wife and his second child. Cedric ended Roman’s life through a sword from an old monument.