A HORRIFIED Sonia Fowler will be left trapped with her killer fiance Reiss Colwell as she is set to finally discover the sinister truth.

The villain is floundering after he killed his comatose wife and locked up Bianca (Patsy Palmer) in a remote sound proof storage unit.

Bianca attempted to escape Reiss’ (Jonny Freeman) clutches as well as get her sister off the hook as she was on trial for the murder of his wife, Debbie.

She recorded a fake confession video and planned to run away, but instead Reiss has kept her as a prisoner.

Using Jack’s connections to the police, Sonia (Natalie Cassidy) manages to get hold of Bianca’s recording on EastEnders.

She will be left completely transfixed by what she watches, as she already had suspicions something wasn’t right.

However, Reiss tries to convince her to let it lie, as he cannot have her finding out the full truth.

After a run in with Mo (Laila Morse) in the Square, Sonia takes a moment to herself in the laundrette.

However, her health will soon take a serious turn and she will have to go to hospital on the BBC serial drama.

At the time, Reiss makes his way to the lockup and will be left absolutely incredulous with what he discovers.

He will rush out of the location as news of Sonia’s condition reaches him, but she’s sent home to rest.

Once they are both back at number 25, Reiss will try to make an excuse to leave, as he needs to go back to the lockup and deal with Bianca.

EastEnders reveals outcome of Sonia Fowler’s trial – but there’s a dark twist

Sonia will then decide to delete Bianca’s video, but she then makes a chilling discovery and will be completely stopped in her tracks.

Reiss will then arrive back home with more excuses about his whereabouts, as Sonia is left shaken.

A tense showdown will then take place as Sonia confronts her troubled fiance.

She then goes to leave the house, but Reiss will physically block her departure.

Will Sonia make it out the house alive?