Too Weird for Ziggy

In “Pussy,” the girl singer of the eponymous band cracks up after her lover and the band’s creative center dies. When her manager tracks her down she is living anonymously in an East Village tenement, rarely going outdoors, and hoarding her own discarded hair, dead skin and other physical castoffs.

In “Greetings from Finsbury Park,” a British rock star comes home from L.A. only to find that the customs agent going through his suitcase is an embittered ex-schoolmate whose wife once slept with...