As first revealed last month, Shenton's character Mitzeee Minniver will soon be left terrified when her boyfriend Warren Fox (Jamie Lomas) tells her how he killed ex-partner Louise on their wedding day.
Next week's episodes see Warren take Mitzeee out to the woods, before recalling his dark crime in a full and frank confession. He does so after Mitzeee starts asking awkward questions about Louise's fate because she is being blackmailed by detective Ethan Scott.
Pictured: Warren tells Mitzeee the truth.
Louise's demise aired in December 2008 after actress Roxanne McKee decided to bow out from the role. However, the full circumstances surrounding the character's death were never made clear to viewers.
In an interview with Inside Soap about next week's twists, Shenton teased: "There are plenty of shocks! The audience didn't actually see Warren kill Louise, so a lot is revealed.
"It's a big deal for Warren to confess because he doesn't know how Mitzeee will take it or what she might do with the information."
Discussing the aftermath of Warren's confession, Shenton added: "Mitzeee does love Warren, but she doesn't know what to do for the best. She might be a girl about town and have done some unethical things in her time, but I'm not sure she can condone murder."
At the end of next week, fans will see Mitzeee hand a letter to her friend Nancy Hayton which reveals everything she knows. However, she orders the aspiring journalist not to read it unless something happens to her, leaving Nancy with a dilemma.
> Read our full spoilers for next week's Hollyoaks episodes