Joseph tries to convince the police and Vanessa that potassium killed Archie.
But Elliot loses confidence in Joseph’s professionalism when he realises Joseph’s shortcomings as a consultant.
Elsewhere, Judith uses a new approach to spreading the message of infection control as a way of building bridges with Chrissie, but ends up creating an even bigger rift.
Oliver, meanwhile, is desperate to complete an assessment but, when he sees Daisha needs a friend, he passes up his chance to finish it.
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