Cassandra, an Oxford don, and Julia, a best-selling novelist, are sisters who share disturbing memories of a bizarre childhood game - and of Simon, who loved them both. The memories re-surface when they see Simon on a television programme, and their relationship is played out to a fatal finish.

Cassandra, an Oxford don, and Julia, a best-selling novelist, are sisters who share disturbing memories of a bizarre childhood game - and of Simon, who loved them both. The memories re-surface when they see Simon on a television programme, and their relationship is played out to a fatal finish.