Will Brody find out the truth about Sienna and Warren?
With Brody wanting to throw an engagement party, Sienna suggests they play down the celebrations, knowing Warren still has feelings for her.
As the celebrations go ahead, Warren invites Summer along to be his plus one, telling her he's cleared it with Sienna. Which of course he hasn't.
Later, Summer’s upset that Cormac’s condition has worsened. As Misbah informs Summer that her father may never wake up, Brody panics to Sienna that they could be looking at a murder investigation if Cormac dies.
Once again, Grace is a shoulder to cry on for Summer and can't believe her luck when Summer reveals that Sienna has been sleeping with Warren.
With encouragement from Grace, Summer posts a snap she's taken of Sienna and Warren kissing through Sienna's letterbox, in an envelope addressed for Brody's attention.
Hollyoaks continues Mondays - Fridays at 6.30pm on Channel 4