Coronation Street star Charlie de Melo has said his character Imran will turn detective as he tries to "piece the puzzle together" following the death of onscreen sister Rana.
Imran now wants to find out who can be held accountable for his sister's death.
Warning: spoiler alert!
"His eyes immediately go towards both Nick and Carla in so far as they were in charge of that building and should have known what was going on," de Melo told ITV.
"They're negligent at best, but as time goes on he takes on a kind of detective role; talking to eyewitnesses, people who worked in the factory, trying to piece the puzzle together."
As Coronation Street cranks up the tension, Imran will overhear a conversation which, de Melo says, "makes him more suspicious".

"There are people who seem to be acting in Carla's interests rather than those who are directly affected and that becomes something of an obsession for Imran," he continued.
"He wants justice to be served and by people going easy on Carla due to her fragile state it seems to Imran like the wrong person is being prioritised here."
Things then take another turn at Rana's memorial when Carla admits she knew there was a problem with the roof.
What a week we've had on the cobbles. Which story will stick with you long after the rubble has been cleared away? #Corrie pic.twitter.com/5pYiSoYs1g
— Coronation Street (@itvcorrie) March 23, 2019
When asked how Imran reacts, de Melo replied: "It's a mixture of vindication and an outward pouring of anger towards Carla and all those who haven't been listening to him.
"She may not have known the extent of the damage to the roof but as far as Imran's concerned she may as well have been holding a bloody knife."
Fans can watch the drama play out in Coronation Street's hour-long special on Sunday, March 24 on Virgin Media One and ITV, and in the regular episodes on Mondays, Wednesdays and Fridays.
Here is our marvellous @CharlieDemelo to tell you that there is no Coronation Street on tonight.
— Coronation Street (@itvcorrie) March 22, 2019
BUT, if you watch the video you might get a little preview of what's coming up on Sunday's hour long special...
Join us on Sunday 24th March at 8pm ❤️ #Corrie pic.twitter.com/0sskBCRw7n