Kazman is a dedicated husband who, despite his wife Sufiah's protests, decided to buy a bungalow for their family near a lake as a family getaway. Anxious in the new house, Sufiah feels as if someone is watching her. Her daughter Lisa, who would always go downstairs at night to play congkak with someone whom she could only see, compounds her uneasiness. Sufiah throws the congkak in the lake, but is awakened the next night by the sound of the congkak being played again and upon investigation, she sees an old lady playing it. When her daughter disappears, the oldest resident in that area, Pak Tua, comes to the family's rescue and helps in locating the missing family members.
After healing Punai (Mazlan Pet Pet) in the previous film; Asmat (Cat Farish) and Johan (Shaiheizy Sam) successfully defeats Mustika (Lisa Surihani). Pak Mor who was injured heads to the river bank and starts to chant some black magic. Soon, Mustika comes out alive and well from the body of Pak Mor. It becomes apparent that Pak Mor and Mustika have teamed up to inherit all of the money that was left by Pak Sudir. Inevitably, their plans are foiled by Punai, Asamat and Johan.
"Jangan Pandang Belakang Congkak" tells the story of three youths who each received a letter from the late Pak Sudir inviting them to his house. Upon arrival, they met up with Pak Sudir's helper Mustika and discovered that he was their grandfather and the three of them have the potential to inherit all of his belongings, but under strict circumstances. They would have to stay at his house for three days straight without touching anything, especially an old congkak. On the first night itself, strange things begin to happen.