Hollyoaks' troubled mum Nancy Osborne will punch Sienna Blake when she realises that the schemer is responsible for her recent problems.
Sienna, played by Anna Passey, has recently launched a ruthless scheme to take Nancy's place in the Osborne family and will seemingly stop at nothing to get what she wants.
As reported at the weekend, Sienna's next stunt sees her start secretly drugging Nancy so that Darren (Ashley Taylor Dawson) thinks his wife has succumbed to her painkiller addiction again.
When Nancy later takes a drugs test to prove that she is clean, she is baffled when the results come back positive. However, all becomes clear when Doctor Browning (Joseph Thompson) tells Nancy that Sienna has been approaching him for pills on her behalf.
Jessica Fox, who plays Nancy, told All About Soap: "By this point, she's been thrown out of the pub and she can't understand why Darren's so upset when she's convinced that she's clean. Nancy goes to confront Doctor Browning, and he's adamant that she's been asking Sienna to come and collect the pills for her - and that's when Nancy realises exactly what Sienna's been up to."
Revealing how Nancy reacts, the actress added: "She punches her in the face! It was brilliant to film - I loved it. But I was really nervous - I came close to actually whacking Anna for real!"
At the end of her tether following all the recent trouble, Nancy tells Darren that he'll have to choose between her and Sienna.
Fox said: "I hope viewers are on Nancy's side and they all cheer when she hits Sienna! Wouldn't it be awful if someone infiltrated your family in real life and no-one would believe you when you tried to point it out? I can't say who Darren picks - you'll have to wait and see."