Mara is a poor, aspiring artist and a survivor of severe childhood abuse and neglect. Following a traumatic kidnapping by a serial killer, she accepts a highly controlled relationship with Cole Blackwell in exchange for safety and financial support. She faces tension between her hard-won independence and the intense security Cole provides.

Cole is a wealthy sculptor and a self-confessed serial killer who targets men he deems deserving of death. He operates with a cold, methodical precision shaped by a traumatic childhood and an abusive uncle. He acts as an obsessive protector to Mara and uses physical and financial dominance to bind her to him.

Known publicly as a successful artist, Shaw is secretly a sadistic serial killer whose crimes are driven by euphoric rage. His vibrant, chaotic art installations mirror his violent impulses. He maintains a bitter, ongoing feud with Cole Blackwell and uses extreme violence to provoke his rival and prove his superiority.

Randall is Mara's deeply abusive stepfather. He displays male entitlement and uses his position to assert control through physical violence, emotional belittlement, and calculated sadism. He views Mara and her mother with disdain and actively punishes Mara for her independence.

Tori is Mara's estranged mother, characterized by severe alcohol addiction and resentment toward her daughter. Consumed by jealousy, she actively sabotages Mara's ambitions, such as destroying her art portfolio, and creates an environment completely devoid of love or safety.

Officer Hawks is a persistent and diligent homicide detective investigating the "Beast of the Bay" killings and the disappearance of art critic Carl Danvers. He rightly suspects Cole's involvement in criminal activities but struggles to find concrete evidence to build a formal case.

Sonia is Cole's highly competent and loyal assistant. She recently escaped an abusive marriage following the convenient death of her husband, an event she suspects Cole arranged. She serves as a supportive figure for Mara and offers guidance in the professional art world.

Joanna is Mara's former roommate. Grieving the brutal murder of their mutual friend Erin at the hands of Alastor Shaw, Joanna harbors intense resentment and blames Mara for bringing the serial killer into their lives.

Frank is one of Mara's former roommates. Unlike Joanna, he maintains a civil, if distant, demeanor when Mara returns to settle her financial debts with them.

Arthur is the owner of the Sweet Maple restaurant. He serves as a rare supportive figure from Mara's past, having offered her employment and stability when she was homeless after her mother destroyed her art portfolio.

Carl Danvers is an art critic known for publishing negative reviews of Cole Blackwell's work. His sudden disappearance draws police attention and heightens the pressure on the local art community.

Erin is a deceased friend of Mara and Joanna. Her murder by Alastor Shaw serves as a catalyst for Mara's decision to accept Cole's protection and move into his heavily secured mansion.

Ruben is Cole's late uncle who assumed legal guardianship of Cole after his parents died. He subjected a young Cole to severe physical and emotional abuse out of jealousy and greed.

Professor Oswald is a former art school professor who taught both Cole and Shaw. He stole one of Cole's designs and attempted to sabotage his career early on.

Marcus York is a wealthy art patron who observes the rivalry between Cole and Shaw. He confirms the details of Shaw's large spiderweb installation during a gallery party.

Maddie Walker is a young woman murdered by Alastor Shaw. Shaw staged her body with Cole in a previous attempt to frame him for the crime.