PETER CHALMERS is the local GP staying with DOROTHY CHALMERS and their 3 children in Ash during some redecorating at home.
He was married to Dorothy before coming to Pitlochry although all three children were born in Pitlochry. He had a short past affair with KAREN SMITH until she said she wanted a normal relationship with someone else.
DOROTHY CHALMERS, nee Cromwell, is one of fours sisters all of whom are staying at Imaginary Bonskeid. These are JACKIE CROMWELL, the murder victim KATIE CROMWELL and CATHERINE STEWART. She heard about KATIE's lesbian relationship from JACKIE.
For more details and clues, see the other suspects in their rooms.