The Fall

As Spector's health stabilises, his legal team, lead by Sean Healy, move into action, determined he will never stand trial. Detective Superintendent Stella Gibson discovers evidence that there may be more victims. Keen to get Spector back into the justice system, Gibson speaks to August Larso,n the consultant psychiatrist who will be assessing Spector. Sally-Ann reaches breaking point.

Gibson comes face to face with the depths of Sally-Ann's desperation, while Burns has to confront his guilt at pursuing Sally-Ann as a conspirator rather than a witness. Gibson and Dr Larson clash over their different view of Spector - patient or prisoner? Meanwhile, Anderson and Ferrington are dispatched to London to discover if Spector can be linked to an old murder there.

Spector's legal team are determined that he will never stand trial. Anderson and Ferrington make a discovery from the past that may help Gibson build her case.

The series concludes as Gibson and Anderson put fresh evidence to Spector, with explosive results. Spector's new-found friendship with another inmate develops, with devastating consequences.