Don't miss a thing by getting the day's biggest stories sent direct to your inbox Line of Duty fans are convinced they've cracked the case, and know the possible secret link between two characters, ahead of Sunday night's much-anticipated series finale.
Amid speculation that Marcus Thurwell is still alive, after being confirmed dead recently, fans think he shares a "missing link" to Steph Corbett, the Mirror reports.
Undercover officer John Corbett's Steph has remained in the series following his murder, and fans are predicting she has a bigger role to play.
With AC-12 and viewers at home finally closing in on the mystery identity of 'H', many are wondering if it could be Thurwell, despite his body apparently being found at his Spanish
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