The protagonist of the film is Kayla, a successful art gallery coordinator who moonlights as a serial killer. She is struggling to come to terms with the voices in her head, which compel her to carry out brutal murders of "hopeless" individuals who have lost their way in life. As a result, she finds it difficult to form relationships and maintain a facade of normalcy in her day-to-day life.
Kayla's life changes when she meets a struggling comic book artist named Mark, who is dealing with his own demons. She becomes infatuated with him, and their relationship takes on a complicated dynamic as the voices in her head urge her to kill him. Kayla must navigate her conflicting emotions and desires as she struggles to come to terms with her past and find a way forward.
As the film progresses, Kayla's grip on reality begins to slip as she becomes increasingly isolated and delusional. The tension in the film builds as she struggles to keep her life together while also trying to find meaning in the voices she hears.
Ultimately, Blood Prism is a psychological thriller that explores the complexities of the human mind and the lengths that people will go to in order to find purpose and meaning in life. It is a haunting exploration of the human psyche and the dark places that we all carry within us.