So, who was Lexie?

There’s a theory on Twitter that, when Cassie was younger, she had an imaginary friend called Lexie (see the flashback with The Shining twins for reference): blaming her more destructive tendencies on “the other little girl” helped her to deal with the untimely death of her parents.

Now, though, it seems Lexie is 100% real. Or, rather, she was 100% real: in episode three, her cold, lifeless body was found in an abandoned farmhouse. And, in episode four, her body has been cut open by forensic scientists and examined meticulously. Cassie’s not-so-imaginary pal is dead, and she was pregnant at the time of her passing. And she looks so much like Cassie, apparently, that our heroine is able to cut her hair, adopt a faint sense of amnesia, and slip into Lexie’s old life in a bid to figure out what happened to her.

In the books upon which Dublin Murders is based, Cassie becomes too intertwined in the dynamics of the house, and quickly figures out that each of Lexie’s housemates played a small part in her death.

However, some readers were left confused about the link between Cassie and Lexie. Particularly as, y’know, “there is no Lexie. There is no Lexie. There’s just you!”

Could Lexie be an imaginary friend made real?

We have already unveiled the evidence which suggests Dublin Murders isn’t so much a detective drama, but a supernatural one. So is it that much of a stretch to suggest that Lexie’s imaginary friend has been brought to life by the same powerful forces that pervade the woods where Katy Devlin’s body was found?

Well, possibly. However, it’s worth noting that the show’s writer, Sarah Phelps, recently opened up about how the series was influenced by a real-life incident where a man suggested the fates would be disturbed if a particular tree was cut down.

As reported by Hello, she said: “He won [his protest] because at some deep, metaphysical level every person involved [must have] woken up at 4am and thought ‘What if he’s right? What if you cut down that tree and all hell breaks loose?’”

What are people on Twitter saying about it all?

Once again, the people of Twitter are absolute baffled by the events of Dublin Murders.

Dublin Murders episode 4 recap: we need to talk about Cassie and Lexie