A plot from wikipedia:
The film is a co-production of Star Cinema and Regal Films. The film was directed by Frasco Mortiz, and it will be released on Christmas Day. The concept of the movie is based on a Filipino superstitious belief that one should never go home directly after visiting a wake since it risks bringing evil spirits to one's home. One should first shake off (in Filipino, pagpag) whatever curse there may be to avoid being trailed by the soul of the dead. A girl in a red dress (Empress Schuck), visits the funeral of her boyfriend (Enchong Dee) who hung himself.
She is driven away by the boy's mother, insisting her son died because of her. When she arrives home, her sister asked her if she did the "pagpag" but she doesn't believed in it afterwards, she is suddenly taunted by the ghost of her dead boyfriend. Cedric (Daniel Padilla), his friends; Hannah (Michelle Vito), Ashley (Miles Ocampo), Justin (CJ Navato) and Rico (Dominic Roque) enter a horror house. Hannah is assaulted by one of the men in the haunted house and Cedric fights for her. At home, Cedric's father (Dominic Ochoa) scolds and grounds him and takes Cedric's fake keys for the car. While his Dad gave orders to their maid, Cedric escapes and drives the highways until he almost runs over a girl, Leni (Kathryn Bernardo). They fight and Leni unknowingly loses her charm bracelet in Cedric's car. Cedric and his friends party on a hill. Cedric and Hannah have a heated argument which ends in Cedric revealing that he doesn't actually have feelings for Hannah and is not ready for a committed relationship, which prompts her to throw a rock at Cedric, wounding his shoulder. Cedric loses control and drives up until morning where they come upon the funeral of Roman (Paulo Avelino) with his wife, Lucy (Shaina Magdayao), in despair.
They soon discover that the funeral was arranged by Leni, Dencio (Janus del Prado) and Marcelo (Marvin Yap). After the funeral, Marcelo is seen sweeping the room when Eva (Matet de Leon) suddenly scolds him as it was a bad superstition. All of the unwanted guests violate a superstition including: Hannah, who dropped tears on the coffin when she saw Cedric holding Leni's hand; Rico, who wiped the coffin with a handkerchief; Justin, who stole bread from the funeral; Ashley for looking at her reflection in the mirror; Cedric, by attending the funeral with a wound; Dencio, who stole the money below the coffin and Leni and everyone else who did not do the "Pagpag," an act of dusting off oneself after a funeral to avoid evil spirits following you home. At home, Leni's stepbrother Mac-Mac (Clarence Delgado) sees apparitions and draws nine figures with a number 8. Marcelo who was sweeping outside is killed by a malevolent entity. Dencio blames Leni for not doing the Pagpag and tells her that the spirit is coming back for the rest of them. He proceeds to tell her the story of how Roman, the husband of Lucy, died. Roman and Lucy once had a child who unfortunately died. Roman made a pact with the demons to bring back his son's life, but on the consequence that he kill nine people in order to do so, and he willingly obliged. After committing his sins, he found his son well and alive inside his coffin. One night, the people from the barrio tried to burn Roman's house down because they knew he was working for the devil. This act led to the loss of Roman and his son, Emmanuel lives.
Meanwhile, Hannah is planning to commit suicide when she suddenly sees a shadow which she thought it was Cedric's, which she tries to follow. After a while, her phone suddenly rings and it turns out to be Cedric telling her that he is on his way there. Hannah panics and a demonic form gouges her eyes out and throws her into the pool, killing her. Cedric witnesses the event and is blamed for what happened. One by one, Cedric's friends are killed by the unknown entity they brought back with them from the funeral. Rico is killed when the soul from his handkerchief throws him against a wall in a gym's shower room, which he first thought was Justin and says that he is really gay. Cedric consults Justin and Ashley and insists them to burn the clothes they wore so they did. Cedric decides to go back to the house of Lucy so he can talk to Eva (Lucy's older sister). While on his way, he sees Leni in the market and decided to follow her. While in the market, Leni suddenly sees the ghost of Roman which caused her to run and panic. Cedric saw Leni panicking causing him to worry about her and chase after her. Leni blacks out while being chased and Cedric rescues her before Roman's ghost catches her. Cedric brings Leni to his car and drives. Leni woke up and was alarmed she ordered Cedric to stop the car. After the car stopped she and Cedric talked, they both find out they have the same goal and decided to team up.