S04E10 — Porphyria's Lover

During a terrible, windy storm, Lily is suddenly terrified by the sight of a book of poetry. She explains that the poem, ""Porphyria's Lover"", by Robert Browning reminds her of a man she helped put in prison. Dan tries to convince her that it's only the storm. The next day her bartender is sent by Dan to go help the men work on rebuilding the schoolhouse, with Lily's blessing. Then while she is alone, the escaped prisoner shows up and carries her off, and Dan must piece together clues from the poem to locate her before she is killed by the madman.