Mark Tyner has been brought back to America seventeen years after deserting in the closing days of the war in Germany. Bassett and Graham try to determine if he was sane at the time he deserted. To do this, they have Tyner and his German wife re-enact just what happened at the time, though this may bring out unpleasant truths.
A mentally retarded teenager is evaluated by Bassett and Graham to determine if he needs to be placed in an institution. They and a judge conclude he does not, but the boy's neighbors feel differently due to his unusual habits.
Laura Hunter, a 15-year-old girl, is pregnant. The school refers her to Dr. Bassett to evaluate if she is psychologically capable of carrying the child, and if not, she could have the child aborted. Bassett's opinion is that the parents are excessively permissive. Laura's mother is determined to see that Laura gets an abortion, despite Bassett's opinion that Laura is emotionally mature enough to have the child, and Laura wants to have the baby.
A millionaire railroad magnate leaves most of his entire fortune to his eldest son, a man who long ago turned away from the business world in favor of an eccentric bohemian lifestyle. Dr. Bassett is called in by the man's younger brother in the hope of proving him mentally incompetent.
A young man is found at the scene of a teenage girl's murder, but protests his innocence. Graham is called by the defense to conduct a psychiatric evaluation of the youth. In response, the prosecution calls in another psychiatrist for a second opinion, Bassett. Graham feels that the young man is incapable of violence, but Bassett notices disturbing signs.
An up-and-coming playwright asks Graham to help his sister, an actress whom he believes is suffering emotional problems. It doesn't take long for Graham to see that the problem lies in the highly symbiotic relationship the two have developed.
Two men wind up in the same psychiatric ward: an apparently paranoid murderer and former organizer whose sanity Bassett is to evaluate; and a veteran city editor whose newspaper just went under before he attempted suicide. The murderer blames the editor for crusading to have him convicted and executed.
Bassett is asked by a judge to sit on a panel to determine whether a young man, institutionalized since a vicious assault several years ago, is now competent enough to be released. Complicating matters is the man's overprotective and possessive mother, whose behavior toward her son borders on seductiveness.
A little girl shows up at Graham's office, claiming to have been abandoned, and exhibiting obvious signs of delusion and schizophrenia. Bassett has her placed in a child psychiatric ward while he searches for her parents. But will finding them improve her situation or only make it worse?
A woman runs out on her appointment with Bassett, and is later found dazed in the night on a park bench. Despite the fact that she shows signs of severe psychological disturbance, her husband demands that Bassett stop treating her, because of his hatred of psychiatrists. The woman claims that she is responsible for a man's death, and Bassett tries to find out if there is any truth to her claim.