Can she clear her name?
Harriet becomes increasingly terrified by the sinister prank calls she is receiving. When Bob hears Dawn on the phone in the Woolpack corridor, he starts to think she may be behind it.
Bob later heads to Woodbine to share his theory with Harriet and a furious Dawn, who says she's moving out.
Meanwhile, Jacob is driven to desperate measures.
Elsewhere, Robert offers encouragement to Aaron.