The script held in the Crawford Collection in the AFI Research Collection contains the following character notes (excluding regular characters):
'HENRY PRESTON. A middle-aged investment lawyer who has departed from his usual conservative business methods in an attempt to make a stock market "killing" using his clients' money. The scheme backfires, leaving him desperate for cash to restore his books.
'LYNNE PRESTON. A 20-year-old, pretty and personable girl. Henry's daughter.
'PAUL LANG. A 28-year-old philanderer living off a deceased estate. Nominally a veterinarian, he does not work (except when he has to) and is an inveterate gambler. He is heavily in debt to S.P. bookie Jason Baker. He is a flat dweller.
'MARGARET PRESTON. Henry's wife, she is 50-55, and a highly-strung but reticent woman. She accepts the dominance of both her husband and mother.
'LOUISE JAMES. Margaret's mother. She is 75, a widow and very rich. She is intelligent, straight-spoken and possessive. A constant "adviser" to Margaret and Lynne, she barely tolerates her son-in-law and dislikes and distrusts Lang. She lives with the Prestons.
'DOUG PHILLIPS. A 45-year-old, slow-thinking mechanic who runs a small garage (lubes and minor repairs) in Richmond. An ex-thief, he bragged to Lang about an undetected robbery.
'PHYLLIS PROCTOR. An ex-nurse, long thrown out of her profession for performing abortions, which she still does. An alcoholic, she is rough and ready, sarcastic and has a rapier wit. She is about 45.
'JASON BAKER. A rails bookie and also an S.P. operator. He is 45, avaricious and with few principles, especially with those who owe him money. A high liver.
'MERVYN MASON. Baker's bully boy and constant working companion. He is 35, not too bright and sadistic. Enjoys his "work".
'TWO CONSTABLES. A few lines of dialogue.
'FINGERPRINT MAN. A few lines of dialogue.'