EastEnders fans are convinced they’ve cracked the mystery behind Zoe Slater’s terrifying ordeal — and it might not be who everyone thinks.

Zoe’s Halloween Horror

Thursday’s (October 30) episode, now streaming on BBC iPlayer, saw Zoe’s paranoia reach new heights as her mystery tormentor struck again in The Queen Vic. The night began with a haunting discovery — a smashed photo of Zoe with her mum, Kat Moon. But things quickly spiraled into something much darker.

When Zoe returned to the pub, she was shocked to find an old home movie playing on the TV. The footage featured her late father, the vile Uncle Harry Slater, dredging up painful memories that Kat and the family had long tried to bury.

Zoe accused Dr Anthony Trueman of planting the tape, but when she watched it herself, her younger brother Tommy joined her, desperate to understand the truth about their family’s past.

Kat Faces the Past

At first, Kat refused to let Tommy watch. But as the ghosts of her trauma resurfaced, she decided to tell him everything — including the truth about what Uncle Harry did to her. The painful conversation became an emotional turning point for Kat and Tommy, but for Zoe, it was too much to handle.

Overwhelmed, she fled the room and later fell asleep downstairs — unaware that her worst nightmare was about to begin.

A Terrifying Attack

In the middle of the night, Zoe woke to a power cut and strange noises coming from the barrel store. Thinking it was her missing cat, she went to investigate. But when the door slammed behind her and she was thrown to the ground, panic took over.

Her terrified screams woke Kat and Alfie, who found her locked inside the store. Zoe insisted that someone had attacked her — but no one else was there.

So who’s tormenting Zoe Slater?

Fans Theorize a Shocking Twist

Viewers quickly flooded social media with their theories. While some believe Anthony Trueman could be behind Zoe’s haunting experiences, many think something far more psychological is unfolding.

One fan wrote on X (formerly Twitter): “I think Zoe’s having hallucinations or she might be schizophrenic. #EastEnders.”

Another added: “Feels like they’re setting up a schizophrenia storyline. Zoe could be hearing voices from the past or imagining things. Her mental health might be worse than we know.”

Others suggested that Zoe’s trauma could be resurfacing in dangerous ways — or that an unseen enemy is manipulating her mind. “It’s hard to tell if it’s real or if Zoe’s suffering a psychotic break,” one viewer said. “Either way, it’s heartbreaking to watch.”

What’s Next for Zoe?

Whether Zoe is being stalked or losing her grip on reality, one thing is clear — her return to Walford has unleashed old demons that refuse to stay buried. With Kat and Anthony both deeply involved, the truth behind Zoe’s torment promises to be one of EastEnders’ darkest and most emotional storylines yet.