For the first time in her career, Sally Lindsay is playing a police officer. And it is a role the former Coronation Street star (47) has absolutely relished.
Intruder is her second collaboration with director/writer Gareth Tunley (they also worked together on Channel 5's Cold Call).
The series, a gripping, edge-of-your-seat thriller about cover-ups, corruption and murder, follows affluent, high-flying married couple Rebecca (Elaine Cassidy) and Sam (Tom Meeten) whose lives are shattered after a break-in by two local teenagers at their luxurious coastal house.
Family Liaison Officer Bailey becomes embroiled in the ensuing investigation, as it transpires there is a lot more going on than meets the eye and she has a fascinating character progression over the four episodes.
"She's a character I based on my mum," explains Lindsay, who spent five years on the Weatherfield cobbles as barmaid Shelley Unwin.
"Bailey is an FSO, which is a very underrated cog in the police machine, in the fact that they are the only people that have contact with the families and they know exactly the relationships and inter-relationships within the family, and my mum is a social worker, and my stepdad is."
At first, Bailey is quite low-key, but as the drama continues, we see her really honing her skills as a police officer and detective, and Lindsay thought it was "just fantastic that she just really got stronger and stronger and stronger in her own abilities".
The mum-of-two may not have portrayed a copper before, but she has created a police drama. She and her former Corrie co-star, Suranne Jones, created ITV hit Scott & Bailey, which ran from 2011 to 2016, together.
The friends dreamt up the idea of a show about a female detective duo on a night out, because they both felt that there needed to be more TV roles detailing the lives of professional women in high-powered jobs.
"I've always been obsessed with police drama - I love them all," reflects Lindsay. "I loved playing a copper because I loved just how clever she was, but how understated she was.
"And I think for a female copper, that's perfect, in a way, that she empowers itself and realises actually, 'I've got this. I'm better than all you lot', even though at the start she doesn't think that at all."
The latest in a long line of intriguing Channel 5 dramas, Intruder was filmed in Ireland. Shooting took place last autumn and so, as is the case with most shows hitting our screens currently, there were strict Covid-19 guidelines in place.
"I think we were the only production in Ireland at that time that didn't stand down," recalls Lindsay.
On the topic of lockdown, has she picked up any new hobbies during this past year? Chuckling, the vivacious star says: "Hobbies have been: trying to keep the kids sane, dog walking, trying to drag the kids out on dog walking, trying to play football with two twins when you're rubbish. One of my favourite hobbies is unstacking the dishwasher and stacking it again."
Then, taking on a more serious tone, she recognises how grateful she is to have had her job during this difficult time.
"I've worked a lot during this lockdown, which has been bizarre, from the first voiceover day under the duvet, and then when we were allowed out, I've done a couple of documentaries and stuff. We all said that before, how lucky we are that we managed to film a drama."
And a brilliant drama it is too.
Intruder starts on Channel 5 from Monday, April 5