Kat and husband Alfie (Jessie Wallace and Shane Richie) return to Albert Square next week, hoping that their marriage is on the road to recovery after the discussions they had while they were away on holiday.
Unfortunately for Kat, however, her reappearance in Walford is more awkward than anticipated as the three Branning brothers are all present at The Vic as she arrives home…
With the suspects in the storyline now narrowed down to either Derek, Jack or Max, it's clear that one of the three men is the last person Kat wanted to see immediately upon her return… but which one is it?
While that question remains unanswered for now, it's clear that Kat's mystery guy isn't willing to give up on her without a fight.
When the Branning brothers arrive for a drink at the pub at the end of next week, Kat spots an envelope addressed to her on the bar. Enclosed is a key and a note asking Kat to meet at the flat. Will she go?
Below, Soap Scoop presents the new promo pictures released for the storyline.
Photo gallery - Kat Moon and her affair suspects in EastEnders: