|“||If you want something, you do no rest until you get it.||„|
|~ Marnie's motto|
It has been said that Marnie will waste no time in causing "chaos for Mac" and has been billed as "a complex, intriguing and hilarious matriarch with a big broken heart" and that she can start a fight in an empty room.
Marnie arrives in Hollyoaks revealing that she has been working with her son, James, with the inadvertent help of Cindy, to drain her ex-husband, Mac, of his finances as he was awarded everything by the courts when they divorced. She threatens to take away their daughter, Ellie, if he does not comply. Mac then gives her a large amount of money to keep her away from Ellie. Before she and James leave Hollyoaks, her other son, Nathan, accidentally reveals to her that Alfie is the biological son of Mac and Cindy. Marnie is furious and goes to The Dog in the Pond where she reveals to everybody that Alfie is Mac and Cindy's son.
Purchasing The Hutch
Marnie then attempts to persuade Diane O'Connor (Alex Fletcher) and Tony Hutchinson (Nick Pickard) to sell The Hutch to her in an attempt to get closer to her children. However, their several attempts fail. Marnie, with the help of James, steal Diane's laptop to see whether if the restaurant is close to bankruptcy. It is then revealed that the restaurant could be bankrupt by Easter, so she and James then return to the restaurant in a bid to persuade Diane and Tony into selling the restaurant. However, Diane's nephew Scott Drinkwell (Ross Adams) catches them with the laptop as they return it. Marnie later learns that Tony earned money from betting with Darren Osborne (Ashley Taylor Dawson). She later informs Diane of this, leaving her upset. Marnie later helps Ellie open up a beauty parlour. At first, Ellie's beauty parlour is unsuccessful. However, when Ellie helps Freddie Roscoe (Charlie Clapham) and Tegan Lomax (Jessica Ellis) raise money for charity, her business starts to become a success.
Marnie and James continue their plan into getting The Hutch. Some of their plans have include getting Scott to distil alcoholic drinks, using Myra McQueen (Nicole Barber-Lane) to bankrupt Tony as she wants £8,000 from Tony as compensation for having a neck injury caused by Scott and manipulating Scott into burning The Hutch down.