Her decision ultimately leads to a dark outcome and awakens a force that has laid quiet for years in the boardinghouse grounds.

Thereafter, she becomes tormented by nightmares of a dark twin, whose presence gets stronger as days pass, as strange things start to happen in the house.

When one by one, the boarders die of unexplainable causes, Joanna the resident psychic and Mylene's best friend struggles to understand the impending danger that she senses and decides to get to the bottom of the mystery; and as it unravels, they find themselves confronted by an angry soul that seeks justice.

The promotional photo of Guni-Guni was first released on July 20 with Lovi Poe in a sepia shot carrying the title of the film.

On July 25, the theatrical poster of the film was released online featuring Lovi Poe in a dual personality.