When Were You Born is a 1938 murder mystery film directed by William C. McGann and starring Anna May Wong[1] as an astrologer who helps the police.

On an ocean liner sailing from the Orient to San Francisco, Mei Lei Ming gives fellow passenger Nita Kenton a reading.

Police Inspector Jim C. Gregg is certain it is a homicide and has Sergeant Kelly bring Mei Lei in for questioning.

She convinces him she is innocent and, after demonstrating her astrological powers by telling both skeptical policemen about themselves based solely on their birth dates, proceeds to help them solve the case and two subsequent, related killings.

Police forensic scientist Dr. Merton, however, remains firmly scornful of Mei Lei's unscientific methods.

When Corey's Chinese business partner Frederick Gow shows up at the police station, he recognizes Juggler Barrows, who has been brought in for questioning about an unrelated crime.