Coronation Street fans have spent the last few weeks trying to understand Lydia Chambers as she seeks revenge on Adam Barlow.
She made her first appearance in Weatherfield back in December and the seemingly nice character has undergone a sudden change.
Since becoming Carla Connor's PA at Underworld, Lydia has been able to get closer to Adam's wife Sarah.
And it what has been described by the soap's boss as a Fatal Attraction-style storyline, Lydia is slowly but surely getting between the bickering couple.
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It was discovered early on that Adam had a relationship with Lydia at university, but he had no idea of the impact he had on her life.
And fans have been left gripped wondering why she's out to wreak vengeance after befriending Sarah.
She started out making silent calls, smashed his car windscreen, called in armed police to his office with an anonymous tip-off, and now she's set him up to make it appear that they've been having an affair.
But one of the things that has been baffling Corrie fans about Lydia is her personal life.
When she arrived in Weatherfield as PA to one of Underworld's clients, Sarah and Lydia bonded over both having young sons.
Not only that, Sarah's son Harry goes to the same Bessie Street School as Lydia's son, Finn.
Corrie viewers, however, are now wondering where Finn is as Lydia continues setting up Adam and spends so much time lingering on the cobbles.
@helsrachel86 tweeted: "Seriously Lydia don’t you have a son at home to be looking after!!!!! #corrie."
"I guess Lydia's son is taking care of himself. #Corrie," @bredrew2 said.
@RuthLouismmmy commented: "Hasnt lydia got a son to be dealing with instead #corrie."
Fans have already predicted the reason for Lydia's obsession with Adam is that he is the father of her son.
And things aren't looking good as a 'knife-edge showdown' has been teased for the pair.
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