Coronation Street fans 'rumble' what Costello is hiding - and truth about Kit

Viewers of Coronation Street are convinced they have rumbled a major twist in an ongoing storyline with Lisa Swain. Perhaps we have all been looking in the wrong direction where corrupt officers may be concerned.

Recently Lisa was shown fearing that her late wife Becky, who died years earlier after being hit by a car, may have been a corrupt police officer after comments made by the Radcliffe brothers. Then Kit Green, Lisa's colleague, proved himself to be a little bit dodgy, so when Lisa found out he was looking into Becky's files she confronted him.

But now there's speculation Kit might not be the one to watch out for, and he might actually have uncovered something truly shocking. It comes as spoilers revealed DI Costello, Lisa's boss, would warn her to keep away from Kit, while also issuing an almost threat to Kit himself.

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Next week there's an incident with Kit and newcomer Eli, a client who has a meeting at Carla Connor's factory. Later in the week after drama with Kit's partner Sarah Platt, Eli claims he was intimidated.

He reports Kit at the station, and soon Costello is questioning him. Taking him into a room, the inspector puts Kit on desk duty for the foreseeable future. He then suggests that if anyone asks why, then to say it’s because of his injuries to avoid a formal inquiry.

Wanting no one to go digging it seems, this then happens again later on. After the drama with Kit, weeks on from him warning his colleague after he tried to access Becky's files, Costello is still seemingly against the detective.

So when he pulls Lisa aside and advises her to stay away from Kit and to keep their relationship as professional, she's left concerned. Taken aback, she'll no doubt wonder what Kit's done, with Costello making a comment about him dragging Lisa down with him.

It's clear Costello doesn't want the pair talking, and now fans think there is an ulterior motive. With Lisa having looked into Becky's files and been stopped and Kit facing the same thing, something is surely being covered up.

So when Kit admits next week that he dug into things anyway, are we about to find out that Kit knows something, and could this be why Costello is getting him out of the way? According to spoilers Kit claims a case he was working on seemed to be linked to something Becky was working on before her death.

Now fans are sure that this may have led to her death and it could see Kit unravel the truth about what happened, and perhaps Costello is the corrupt officer given his desperation to stop things being looked into. Taking to social media one fan theorised: "Costello is bent."

Another viewer said: "Definitely thinking it's DI Costello who's corrupt and hiding secrets about Becky/the case? He's satisfied that Lisa is over asking questions but now that Kit is still asking questions he puts him on desk duty."

A third fan posted: "For this theory, I have to put my exasperation with Kit as a character to one side. Costello trying to drive a wedge between Lisa and Kit will have the opposite effect. They’ll both land on the same page and work together to uncover whatever it is Costello is hiding."

One post said: "Does Kit discover something about Becky’s death…is the case Tia Wardley’s and does someone at the nick give Lisa the heads up about it?" A final tweet read: "My gut is telling me that Kit is actually the good guy, that he discovers a massive cover up involving Costello and it turns out he is the only one Lisa has actually been able to trust all along, my gut may be way wrong but just putting this out there."

Coronation Street airs Mondays, Wednesdays and Fridays at 8pm on ITV1 and ITV X. * Follow Mirror Celebs and TV on TikTok , Snapchat , Instagram , Twitter , Facebook , and Threads.