IF EMMERDALE'S mystery woman looked familiar to you it's with good reason - she previously spent two years in the village.
The actress behind the character - who was dubbed simply Eileen in the credits - and accused Faith Dingle of murder, previously starred in the ITV soap between 2003 and 2005 as dodgy solicitor Rachel Whatmore.
She had dealings with the Dingle family when she helped her ex-husband Chris Tate dispose of most of his millions and frame Charity Dingle her for his murder.
Worst was to come when she began a passionate affair with Chris's sister Zoe - who also had an affair with Charity - but left the village after it was exposed.
With the differing names, it's unlikely Rachel is back for revenge, and instead is just the same actress playing two different parts - after all, surely Charity would recognise the woman who helped her lose millions?
It comes as the show's wedding of the year was halted as the police stormed The Woolpack to arrest Faith Dingle for MURDER.
"That's her constable, that's her," the mystery woman said as she walked into the pub. "That's Faith Dingle. The black widow who murdered my dad!"
The twinset and pearl wearing women stormed into the pub and shrieked about Faith, but didn't give any details of who her father is or why she thinks Faith killed him.
Earlier in the episode Cain was forced to lock Aaron in the boot of his car to stop him from discovering his secret wedding before Robert and the family had finished getting everything ready.
But once he was let out and Robert broke the news to him that they were getting married before he is sent to prison for a year.
Asked by Robert if he was nervous about their upcoming wedding, Aaron said: "Not for one second."
And when they walked into the then festive-themed wedding - courtesy of Faith's interfering - the Dingles and the Sugdens assembled for the wedding.
"Are those the Christmas decorations?" Aaron asked. "You know what, it works. Anything would. However, whenever."
The couple then walked over to the front of the room with vicar Harriet Finch who put aside her religion's rules to marry the loved-up couple.
"Let's kick off by getting the whole if anybody contests this marriage thing out of the way?" said Harriet, and as no-one did, the wedding could proceed.
"Great, we're all agreed then. This marriage was meant to be," she added as the mystery woman and the police stormed in.
Viewers will have to wait until tomorrow night's epoisode before they discover if the wedding goes ahead and what Faith's secret is.