The reason that Ruby was so upset over Anthony being back on the scene was soon revealed when we learned in upsetting flashback scenes that he’d sexually abused his daughter when she was a teenager.

Even worse, a DNA test proved what Ruby had long feared but had tried to ignore – that Anthony, and not Caleb, was Steph’s biological father.

Caleb’s world crumbled when he found out he wasn’t Steph’s dad, and his heart broke for Ruby when he found out what Anthony had done. Ruby insisted that Steph should never find out that Caleb wasn’t her father.

Caleb confronted Anthony, holding him at gunpoint while trying to make him admit to what he’d done. Cunning Anthony managed to turn the tables to some extent, by revealing to Caleb his discovery that Ruby had slept with Cain.

Since Anthony vanished – killed by Ruby, but the body disposed of by John Sugden (Oliver Farnworth) – Caleb has been seething over the knowledge that his brother slept with his wife, though Cain has denied it.

In upcoming episodes Steph unwittingly adds fuel to Caleb’s suspicions by telling him that she saw an awkward interaction between Cain and Ruby.

When Steph mentions that she’s been on contraception most of her adult life in the new spoiler video, Caleb realises to his horror that the morning after pill he found in the bin a few months ago belonged to his wife.

After Caleb discovered the medication, Ruby deflected by claiming it was Steph’s after a night with Ross. But now is Caleb knows that was a lie.

On top of this, Cain’s lies persuade him that Anthony was telling the truth – and he broods about possible revenge.

It’s going to be explosive.