This article contains spoilers for tonight’s Coronation Street, which has not yet aired on TV but is available to watch now on ITVX.

It was a tough day on Coronation Street for many of the residents in tonight’s instalment of the ITV soap, as they said their goodbyes to Craig Tinker, following his murder last month.

Ahead of his memorial service, DS Lisa Swain (Vicky Myers) appeared to be struggling more than most, with Craig’s brutal death bringing back painful memories of wife Becky’s murder.

In a bid to try and distract herself from the tough afternoon, Lisa decided to have a sort out, which drew Betsy Swain’s (Sydney Martin) attention to some old files.

As soon as she flipped one open, Lisa was on her, demanding that she mind her own business, leaving the teen concerned that her mum was having some kind of breakdown.

With Betsy convinced that Lisa was hiding something, she later confronted her about the contents of the file, and Lisa explained that it contained information about Betsy’s donor that she isn’t legally allowed to see until she turns 18.

However, Betsy wasn’t convinced, and was soon caught rooting through the files by Carla Connor (Alison King).

When Lisa returned home and found the files disrupted, she was horrified that Betsy had read the contents, and soon confessed to Carla what they really contained.

She revealed that, before her death, Becky was being investigated by the anti-corruption unit, and Lisa was keen to keep that information from Betsy.

Lisa emotionally opened up about how she and Becky had fought over the allegations the day Becky was killed, and though the investigation was dropped, she didn’t get the funeral she deserved.

Carla urged Lisa to be honest with Betsy, so she called her to the station to talk.

However, when Betsy insisted that she hadn’t read the letter because she wasn’t interested in knowing who her sperm donor was, Lisa decided to keep quiet about what the letter was really about.

Unfortunately, Betsy wasn’t being entirely honest either, as she later revealed to Lauren Bolton (Cait Fitton) that she knew exactly what the letter was about.

She confessed that she was convinced Becky’s hit and run had been a coverup of some sort, and asked Lauren for her help in getting to the bottom of things.