Hour of Mystery is an hour-long UK mystery anthology television series.^[1] Donald Wolfit introduced each of the episodes, which were produced by ABC Weekend TV^[2] and aired on the ITV network in 1957.^[3][4][5]

Only two of the episodes are known to exist, out of the 20 made.^[6]

Episodes included adaptations of The Man in Half Moon Street, The Woman in White, Portrait in Black, and Night Must Fall.^{[7][8][9][10]}