A Korean-American adoptee tries to forge relationships with her biological family as she sorts out her feelings toward her adoptive one in “First Person Plural,” an intensely introspective film by Deann Borshay Liem, who was born amid the chaos and poverty of mid-1950s Korea, and adopted in 1966 by Californians Alveen and Arnold Borshay. They assumed Deann was an orphan, but she wasn't---a fact she learned after growing up.