Coronation Street schemer Cassie Plummer has turned evil over Ken Barlow in the show's latest episode. Cassie took drastic action when her unofficial job as Ken's carer unexpectedly came under threat. Viewers have seen Cassie look after Ken after he suffered a fall at home back in June.

Claire Sweeney has opened up on her character Cassie Plummer's shocking behaviour and how she fears the public backlash to her character trying to poison a "national treasure"

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Coronation Street's Ken Barlow could be in big danger in upcoming scenes as Cassie Plummer's real intentions appear to be exposed after being sacked as his carer

CORONATION Street has taken a dark twist with Cassie Plummer’s sick scheme against Ken Barlow. The troubled recovering drug addict – who is played by actress Claire Sweeney in the ITV soap

Coronation Street's latest episode appeared to confirm Cassie Plummer was targeting Ken Barlow amid her enjoying splashing his savings, with Ken seemingly in danger

This article contains spoilers for tonight’s Coronation Street, which has not yet aired on TV but is available to watch now on ITVX. Cassie Plummer (Claire Sweeney) took drastic action in tonight’s Coronation Street after losing her job as Ken Barlow’s (William Roache) carer.