Stefan Dennis says security was increased on the set of 'Neighbours' to protect a leaking of the identity of Kate Ramsay's killer.
The veteran 'Neighbours' actor - who plays Paul Robinson in the Australian soap - says the cast would get a "rap across the knuckles" if they were careless with the script, and all final copies had to be shredded after filming to prevent anyone from finding out who murdered Paul's niece in the super secretive storyline.
Stefan exclusively told BANG Showbiz: "If it's a genuine mistake you would probably get wrapped across the knuckles if they found out you had been careless, but all the scripts at work get taken to the shredders. We have security bins at work, we are not allowed to throw them out at home.
"There is that slight danger of someone going through our rubbish it's happened before. Someone once left there scripts in a car and it got stolen and they had to re-write the entire block. So they are very careful and the security is quite high on the scripts."
Stefan thinks viewers will have a tough time figuring out who Kate's murderer is following her shock death in the episode which aired on Channel 5 last Monday - April 21 - when she was shot dead and collapsed in the arms of boyfriend Mark Brennan, just after accepting his marriage proposal on her birthday.
He said: "We all knew from the start [who had killed Kate] but in saying that, it's going to be a drawn out process for the next couple of months in quite a clever way, there is going to be a lot of twists and turns. I have to take my hats off to the writers."