Actress-playwright-comedian Nancy Redman has returned to the Chain Studio Theatre for the third run of her one-woman show, A Séance with Mom.  Directed by Austin Pendleton, the piece is performed on a bare stage, with only a chair, small table, and walker at its side. Its six characters are conjured up by Redman with her expressive voice, elastic face, and physical comedy. Redman, who has been described as a cross-fertilization of Lucille Ball and Groucho Marx, steers clear of politics, preferring to take a deep dive into family relationships and the human condition.