These three dramatic works by Tennessee Williams explore the darker side of human nature and are haunted by a sense of isolation and regret. ''Suddenly Last Summer'' is the starkly told story of Catherine, who seemingly goes insane after her cousin Sebastian dies in grisly circumstances on a trip to Europe. ''The Milk Train Doesn''t Stop Here Anymore'' is a passionate examination of a wealthy old woman as she recounts her memories in the face of death, while in ''Small Craft Warnings'' a motley group of people - including a blowsy beautician, a discredited alcoholic doctor, a vulnerable waif and two gay men - sit around a seedy bar on the Californian coast, each contemplating their own desperate fate