EastEnders teased one character could be on to Gray Atkins, as his controlling and abusive behaviour continued.
Gray has been violent towards wife Chantelle and controlling her on the soap since they arrived last year - while it was soon revealed it had been going on for much longer than that.
To everyone else, they're a happy couple and the perfect family, while some characters have appeared suspicious over their marriage.
Chantelle often appears afraid of her husband or at least of letting him down, but no one has ever worked out what is going on behind closed doors.
Amid speculation over who might be the one to expose the truth and bring down Gray, a new character could be in the running.
Dotty Cotton couldn't help question Gray after making a discovery while the couple were in The Arches, picking up his car.
After working on the car, mechanic Dotty located a tracking device in the boot.
Clearly startled by it and unsure about Gray's behaviour, she pulled him up on it to see why he had it - just as Chantelle was taking the car for the day.
Dotty asked him if it was done out of jealousy, predicting he was spying on his wife.
While looking aggressive, Gray played it down and suggested he was just being careful in case the car was stolen.
Dotty gave him a look as he left that made it clear she wasn't buying his claims, and was suspicious about him.
So could this be the start of Gray's downfall, and will Dotty spill the beans?
Later on in the episode, he was shown spying on his wife knowing she had the car.
Tracking the destination it had travelled to, he also looked back at the history of the tracker over the past week.
It's then that he realised the car had been taken to Stratford a week ago, and he immediately accused wife Chantelle of taking it without his permission.
Fans know it was actually Ben Mitchell who used it, but Gray didn't believe his wife as she claimed innocence.
EastEnders airs Mondays at 8pm, and Tuesdays at 7:30pm on BBC One.
