La Sonnambula
At a masked ball in a decaying castle, a poet dances with a coquette, who leaves. He then meets and falls in love with a sleepwalker, secretly imprisoned by the host because she is his wife. The jealous coquette alerts the host; after the sleepwalker drifts away and guests return, the poet breaks through their dance but is stabbed by the host. The sleepwalker reappears, raises him, and they glide away together.