As Yusef Khan’s reign of terror over Zainab – played by Nina Wadia – comes to a climax, one of the family will lose their life at the hands of the evil doctor.

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An insider explained: “Zainab’s starting to see Yusef’s dark side – and it’s a terrifying thing to behold. He’s beginning to get violent now, and the situation Zainab finds herself in is very dangerous.

“She’s handed over power to this man, who we all know was responsible for trying to kill her once. It can only end in tragedy.”

With wicked Yusef (Ace Bhatti) trying to convince Zainab to leave Albert Square to start a new life with him and her toddler son Kamil in Pakistan, the troubled mother will be left in a “desperate” situation as the festive season approaches.

However, as Zainab’s estranged husband Masood Ahmed and pal Denise Fox – played by Nitin Ganatra and Diane Parish respectively – try to save her from Yusef’s evil clutches, one of the Masood family will end up paying the price.

The source added to Inside Soap magazine: “There’s a lot of intrigue in the build-up to the climax. This story’s going to go in some very interesting directions. Zainab’s a desperate woman, and her problems are set to embroil other people in the whole sorry situation.

“If Yusef took Zainab and Kamil away, Masood could lose them forever. He really needs to find them. But in yet another twist, someone will pay the ultimate price for Yusef’s wickedness – so who’s going to die?”