"Antisocial Behaviour" is the 507th episode of Casualty and the 13th episode of the 20th series.


A guilty Abs remains tight-lipped about witnessing Guppy's attack when he accompanies the badly bruised victim to a police interview. Harry is left feeling embarrassed after making a move on Ellen. Meanwhile, a man misreads the situation when his wife hides the fact she has breast cancer from him and confides in his friend instead.

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