Coronation Street's Summer to plan escape amid Theo murder suspicions..

 Is she guilty of the crime?

Summer Spellman is dramatically betrayed by her closest allies on Coronation Street next week, when accusations fly and she's taken in for questioning by the police over Theo Silverton's murder!

Pressure mounts between Todd's nearest and dearest, and George blames Summer for Theo's demise after memories come flooding back to him. Things get even worse for the panicked Summer, as the evidence paints her as vengeful and full of hate.

At the same time, she receives an offer to return to the US to study at university, but knows that leaving won't look too good. Will she convince the police of her innocence – or flee overseas before she's charged?

"There are a number of things stacking up against Summer!" teases Harriet Bibby, who plays the prime suspect. "The police are on her tail and she isn’t thinking logically. She decides the best solution is to just run away, as she needs to get out of the pressure cooker!"

With the investigation circling the Street, Summer is on edge around Kit. But her innermost thoughts are about to make her look even guiltier after George finds her journal – which includes a startling description of her putting a gun to Theo's head!

Summer knows this looks really bad," explains Harriet. "At this point, everyone is suspicious of everyone. If your nearest and dearest are starting to question you, then that makes you look capable of murder."

Not only are George and Christina concerned about what they found, but Kit also spots a crucial piece of evidence in the background of Lisa's wedding photo. The discovery puts Summer at the scene of the crime, which prompts Lisa to pull her in for questioning.

Sitting in a police station being questioned over someone's murder is horrific," reveals Harriet. "Summer's in panic mode. Everyone who was linked to Theo is just trying to keep their head above water and stay out of suspicion's way."

Although Todd does a good job defending Summer to Lisa, George's doubts trigger fresh memories of the night in question, forcing him to confront Summer about what he remembers. But soon, she's turning the accusations back round to him.

As fingers are pointed and gossip spreads, Christina also finds herself caught in a big fib. She urges George to come clean about Summer's lies – but is Christina trying to distract from her own whereabouts that night?

As Summer panics that she'll be arrested for Theo’s murder, she packs a bag and makes plans to head back to America. Her future certainly looks bleak as the police build their case, but could Theo's murderer really be the person everyone least expected?

"Theo stole Billy away from Summer," Harriet reminds us. "He's also taken a part of Todd, because he's not the same guy as he once was. It boils down to the question: would Summer kill to protect what's left of her family?"