Ep 7. Death of a Ghost: Part 1

The normally unflappable sleuth Albert Campion loses a bit of his objectivity when murder strikes among some good friends, the bohemian enclave that's built up around a deceased artist who decreed that every year after his death one of his 12 last paintings should be unveiled. It is during one of these annual unveilings that the lights suddenly go out and when they go back on again, a rather unpleasant young artist named Dacre turns up murdered.