Call Northside 777

In 1932, a cop is killed and Frank Wiecek sentenced to life. Eleven years later, a newspaper ad offering a $5,000 reward for information by Frank's mother leads Chicago reporter P.J. O'Neal (James Stewart) to look into the case. He learns that 11 years earlier, Frank Wiecek was convicted of killing an on duty police officer and was sentenced to 99 years in prison. For some time, O'Neal continues to believe Frank guilty. But when he starts to change his mind, he meets increased resistance from authorities unwilling to be proved wrong.