The Astonished Heart is the story of a happily married psychiatrist who gradually sinks under the emotional pressure of falling passionately in love with his wife’s friend Leonora. Christian is tortured by jealousy and by his acute professional awareness of his obsession, gradually losing his control but not his fascinating articulacy.
The Astonished Heart is a short play from the Tonight at 8.30 cycle, conceived by Coward as an antidote to the boredom of a long run of the same script. It is a sequence of ten plays to be performed by the same cast in sets of three, alternating matinées and evenings, ranging from farce to melodrama to romantic comedy.
After touring, Tonight at 8.30 was produced at the Phoenix Theatre in London in 1936.