This article has spoilers from Wednesday's (March 20) EastEnders, which has not aired on TV yet but can be watched now on BBC iPlayer.
Dean Wicks (Matt Di Angelo) has been taking extreme measures to keep daughter Jade Masood (Elizabeth Green) close to him in EastEnders, but just when we thought he couldn't go any lower he exceeded all of our expectations.
After finding out that Jade planned to relocate to Pakistan with mom Shabnam once she had recovered from her chest infection, Dean started tampering with her antibiotics, leaving the pill cases empty so that they had no effect.
In more recent scenes, Dean accompanied Jade to her fundraiser in the Queen Vic, much to the horror of Linda Carter (Kellie Bright), and confided in her that he wanted her to stay with him longer.
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However, Jade was determined to make the move to Pakistan, and made it clear that nothing Dean said could make her stay with him.
Angry at being disobeyed, Dean disconnected the tube from Jade's oxygen tank, leaving her completely vulnerable.
Jade soon struggled to breathe, and Dean was immediately there to help her.
However, after a talk with Linda, Jean Slater (Gillian Wright) decided it would be best if Dean left, and soon he was being forced out of the building by Johnny Carter and George Knight (Charlie Suff and Colin Salmon), despite his insistence that he needed to be there to care for his ill daughter.
As Jade stood up to deliver her speech, Dean was forced to listen from outside, and he grew worried as it became clear that Jade was having trouble breathing.
Things took a surprising turn when Jade collapsed, causing the crowd to panic, with Billy Mitchell (Perry Fenwick) hurrying to find Dean.
As Dean came to Jade's aid, he placed the blame for her condition on an upset Jean.
With no one suspecting Dean of interfering with Jade's oxygen, will he get away with his crime, and will Jade recover, or has he killed his own daughter?