The theater has not been kind to the English port city of Ipswich lately. Alecky Blythe’s documentary musical London Road, a huge hit for London’s National Theatre and recently made into a film featuring a singing Tom Hardy (no, really), shows Ipswich’s working class to be petty and vindictive. In the revival of Henry Naylor’s Echoes, part of a double bill with new play Angel at the Brits Off Broadway festival, Ipswich is such a “dungheap” that it drives two women into the arms of religious extremists in Afghanistan and Syria. Compared to the hellscapes in which the women of Naylor’s “Arabian Nightmares” find themselves, though, Ipswich is the Garden of Eden.