Vigil creator Tom Edge has claimed that there's "another way to read the show" beyond it being just a standard murder mystery thriller.
Ahead of tonight's finale (Sunday, September 26), the writer-producer opened up about how the team behind the Suranne Jones-led drama were keen to expand the series into something more complex than a classic whodunnit.
More specifically, he said that they wanted to examine how lead character Amy Silva is forced to confront certain things about her own life – all while trying to get to the bottom of a suspicious death aboard a naval submarine.
"It was important to us that that wasn’t thrown in as texture or anything else like that.
"I think there are a few different ways that you can enjoy the show; which is about Amy's journey as she goes from being a land-dwelling person, whose life is quite compartmentalised into work and her relationship with the child in her life, and her emotional life over there," Edge explained at the BBC outing's recent BAFTA Q&A.
"She works hard to keep those things apart and then, in a way, that kind of felt very mythical: she's swallowed into the belly of the beast and taken down into this kind of underworld, placed under huge pressure, with everything that allows her to function normally stripped away from her.
"There are no colleagues; no databases; there's no authority in terms of her capacity to run things. She has to go to sleep behind this tiny thin curtain; her medication runs out as the days are extended, and she's progressively shorn of all of the things that help her in her head and feel like she can do her job professionally, and cope, and survive."
Also starring Endeavour's Shaun Evans, Casualty and Timeless' Paterson Joseph and Game of Thrones' Rose Leslie, Vigil sees the latter's detective sergeant Kirsten Longacre attempt to help chief inspector Amy (Jones) throughout her investigation through one-way telegrams.
Due to the pair's shorthand with one another – they used to be romantically involved – such messages are often coded so as not to give away any crucial information to any prying eyes aboard the nuclear-powered warship.
"Her journey, as she goes into that world, what she experiences juxtaposed with the other half of that relationship, where that person is able to talk to her and she can't talk back, that felt important to tell that story and thread that through the twist and turns of the rest of our show," Edge finished.
Vigil concludes tonight (Sunday, September 26) at 9pm on BBC One and BBC iPlayer. The series is also available to pre-order on DVD.
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