Coronation Street viewers are convinced they have uncovered a major twist in the ongoing storyline involving Lisa Swain and DI Costello. Recent episodes have seen Lisa fear that her late wife Becky, who died years ago after being hit by a car, may have been a corrupt police officer. Meanwhile, colleague Kit Green has been acting suspiciously, leading Lisa to confront him about accessing Becky's files.
Now, spoilers reveal that DI Costello, Lisa's boss, warns her to stay away from Kit, while also issuing a veiled threat to Kit himself. Next week, after an incident with newcomer Eli at Carla Connor's factory, Eli reports Kit to the station. Costello questions Kit and puts him on desk duty, suggesting he claim it's due to injuries to avoid a formal inquiry.
Fans believe Costello is trying to cover up something related to Becky's death. One fan theorised: 'Costello is bent.' Another said: 'Definitely thinking it's DI Costello who's corrupt and hiding secrets about Becky/the case.' A third added: '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.'
Kit later admits he dug into things anyway, claiming a case he was working on seemed linked to something Becky was working on before her death. Fans speculate this could lead to the truth about what happened to Becky, and that Costello may be the corrupt officer desperate to stop the investigation.
Coronation Street airs Mondays, Wednesdays and Fridays at 8pm on ITV1 and ITVX.
