I give myself three guesses at the beginning of a thriller. And I was completely wrong when it came to The Suspect." You see, Bobby's father died by suicide after being accused of abusing the young child, with Joe among the names who had signed off on the probable cause of Bobby's mental health issues. As Joe said himself, he'd 'condemned his dad to being a paedophile'.

She becomes more invested in catching the killer as the case develops, but can she trust DI Ruiz? As he seems to depart from protocol and rational thinking, she becomes less sure of her own assumptions. Should she go with what she’s been taught, or should she trust her instincts? Learning to balance these two sides of herself is a big part of her journey through the series. Handcuffing Joe to Bobby, DJ pushed them all outside to the awaiting police. He then slammed the door and set off the explosion he'd rigged, killing himself in the process as the house burned to the ground. Speaking of Joe's early onset Parkinson’s Aidan said: “When we meet Joe, he has just been diagnosed with Parkinson’s. So, you wonder if what’s going on with him is part of the condition. Has he been really thrown by the diagnosis and that’s why he’s making these decisions? Or is it a veil to cover something else? Yes, The Suspect looks like it's going to be a gripping watch! In it, we see Aidan Turner's character in his work and home life, as he slowly starts to delve deeper and deeper into what's happened as he gets involved in Catherine's case. DJ, in his defence, seemed far more dragged along in this revenge plan, though was the muscle behind the operation. On Bobby's instruction, he'd remained undetected, killing Catherine and framing Joe before going after Cara as well. That way Bobby consistently had an alibi and DJ was never even suspected.The discovery of Catherine McCain's body triggered Joe's entire ordeal, with the clinical psychologist trying and failing to cover up the fact she was one of his patients. A serial liar with an angry streak, Bobby was taken in by police before eventually being let go as he had an alibi for the night of the murder. DS Riya Devi is relatively new to murder as this is only her fourth case. Intelligent, efficient and straightforward, initially she just wants to do her quota of cases, get signed off and move on to crimes which are less violent and emotionally disturbing.

However, while the police, particularly DS Devi and DI Ruiz, had Joe in their crosshairs and set out to prove his guilt, Joe began to suspect another of his patients, Bobby Moran, had something to do with what had happened. Julia season 2: release date, trailer, cast and everything we know about the Sarah Lancashire series Shaun Parkes, leading detective DI Vince Ruiz, added: "I could not work out what was going to happen. All I knew was there was something more going on here. As soon as I read that, I was in. And you really don’t know who is responsible for this murder. As it unfolds you realise, 'Wow'. That a story like this can happen. You have people who really are that devious in their thinking." Never Been Chris'd: release date, trailer, cast, plot and everything we know about the Tyler Hynes movie

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Turns out, the psychiatrists weren't entirely wrong. Bobby was being horrifically abused as part of a paedophile ring… only it was his mother orchestrating it, not his dad.

Time season 2: release date, cast, plot, trailer, interview, episode guide and everything you need to know

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But from his own, less than ethical investigation, Joe knew there was more to it, and eventually discovered Bobby Moran was actually Bobby Morgan, who had previously lived in Liverpool, where Catherine had lived, and he had trained to become a psychologist. The Suspect started on Monday, August 29 at 9 pm on ITV and the series finale concluded on Monday, September 26. You can stream previous episodes on-demand via ITV Hub. When yet another young woman turns up brutally murdered, he can barely find the words. But this investigation will test the limits of his intuition and ingenuity as he struggles to understand what hides beneath the obvious facts of the case.