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When wealthy banker Walter Craig (Gus Glassmire) disappears, former private eye Nick Trayne (James Dunn) comes out of retirement to find the missing man. As Nick gets to know the contentious Craig family, the rich man reappears, but someone has put him in an unresponsive, zombie-like state. Then a member of the family is found stabbed to death, with Walter standing over him. When Walter attacks Nick, it seems that the catatonic banker is the killer, but Nick thinks there is more to the mystery. Wikipedia