Ian Beale was shocked to discover that his stalker was his ex-wife's eldest son, Steven.
An EastEnders source told DigitalSpy: "Ian couldn't believe his eyes when he found out it was Steven who was stalking him."
"But now, with Ian nowhere to be found, Steven walks back into Walford and reconnects with Peter and Lucy, his younger brother and sister."
"Jane, however, is more concerned as to the whereabouts of her husband – but just what is Steven hiding? And how long will it be before everybody finds out?"
Steven left Walford when he learnt that Ian wasn't his biological father. He went New Zealand to live with his real father, Simon Wicks.
Steven is now played by a different actor - soap newcomer Aaron Sidwell.
Image: Digital Spy