The hairdresser – who is played by actress Diane Parish in the BBC soap – found proof of Ravi murdering his own father in tonight’s episode.
Viewers know Ravi bludgeoned Ranveer to the death after Suki Panesar knocked him out when he tried to rape her.
He convinced Suki she was responsible, with her own son Kheerat taking the blame and going to prison for life.
And tonight the secret that Ravi had been carefully hiding emerged almost a year to the day.
With Ravi moving in with Denise’s daughter Chelsea, Denise was invited to a house warming to bring all the family together.
Jack talked Denise around and convinced her to pretend to be nice to Ravi so Chelsea would have an escape route should she need it.
But when she was preparing herself in the Vic for facing him at the party, she overheard Gina talking about Ravi being a drug dealer.
And at the party as kicked off Ravi was furious at Nugget for using the laptop for the music playlist and caused a scene.
Both Denise and Suki noticed something was amiss and later Ravi discovered his laptop was gone and it soon was revealed that Denise had taken it.
She got Ricky to help her find any deleted files and with horror watched the security footage of Ranveer attacking Suki and her defending herself.
And then as she continued to watch she found the deleted footage that showed Ranveer survived – and that Ravi killed his own dad.
But as she watched Ravi appeared behind her and said: “Anything interesting?”
Fans are terrified for Denise as she faces off against another killer.
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One wrote: “Omg Denise has seen the video!!!!”
A second said: “Denise has taken Ravi’s laptop and found the CCTV footage of Ranveer’s murder.”
Another added: “Denise has found the video of ravi killing ranveer.”