Meanwhile, the Lovedays' lives are about to change forever on Hollyoaks as Zack is forced to tell his parents about Fake Lisa's deception.
When Simone (Jacqueline Boatswain) finally agrees to give Louis (Karl Collins) another chance and they head off to a posh hotel together, it gives Sonia and Zack the chance to continue their secret affair.
Unfortunately, things take a very awkward turn when Louis and Simone return after forgetting something - which leads to them walking straight in on the passionate moment.
Simone and Louis are stunned when they walk in on Lisa and Zack kissing.
© Lime Pictures
Zack and Lisa get a surprise when their parents catch them together.
© Lime Pictures
Simone doesn't want to listen to the Lisa and Zack's explanations.
© Lime Pictures
Simone shouts at Zack and Lisa after catching them in the act.
© Lime Pictures
Terrified that he'll be accused of committing incest, Zack immediately tells his parents that 'Lisa' is an impostor - but he begs them to give Sonia the chance to explain herself before they call the police.
When the Lovedays do confront Sonia, she admits that the real Lisa is still alive and out there somewhere, sending their emotions into overdrive.
Wanting to help as best she can, Sonia soon visits Joanne Cardsley and begs her to support the Lovedays by telling them that she knows Lisa's abductor Margaret.
It's not long before Louis, Simone and DS Thorpe all confront Joanne with some tough questions to ask, but just how honest will she be? And when Margaret asks Joanne for money so that she can flee with the real Lisa, where will Joanne's loyalties lie?
Hollyoaks airs these scenes on Monday, April 11, Tuesday, April 12 and Thursday, April 13 at 6.30pm on Channel 4.