Cold-hearted Laura Randall dominates the people around her every way she can, from faking being an invalid to blackmail. Her husband Walter, who is about to sell his underwater-sounding invention, asks her for a divorce. Laura knows that Walter now loves her caretaker, Phyllis, so she plots to destroy both the invention and her rival with a time bomb at Walter's lab. Laura forces her brother-in-law Roger who handles her business affairs to build a timed bomb. He had forged a check for an investment in Bruce Sheridan's company that failed which Laura held over Roger. Laura has Phyllis deliver the package to the lab where the invention is stored after Laura takes the sleeping pill given her by Phyllis. Laura follows Phyllis to the lab where she knocks out Phyllis so she is killed in the explosion. Phyllis surviving the bombing decides to see Mason but when she returns home, she learns that Laura was killed after being drugged and dying due to gas from her heater and that she's Lt. ...
Did You Know?
During the trial when Walter Randall testifies, his watch clearly shows the time as 3 PM exactly. Perry Mason conducts his 45 second experiment by radioing to Paul Drake to remotely turn off the natural gas and then turn it back on. At the end of that demonstration, which lasted a minute at best, the camera turns back to Walter Randall, but his watch now shows it as 3:15, nearly a quarter hour later. See more
It's pretty fantastic, Mr. Randall. This underwater sounding equipment could revolutionize maritime navigation.
Is Nautronics interested?
Yes, definitely. If the field tests work out, you've got yourself the deal you asked for.