Officers have carried out more than 200 house calls about a 23-year-old mother from Warwickshire who has gone missing.
Elezbieta Kinczyk vanished from her home in south Leamington Spa on 6 June after meeting a friend in town.
Warwickshire Police said they knew of no reason why the Polish national would go missing and were "extremely worried" she may have come to serious harm.
Her family said they missed her terribly and her five-year-old son Pactric asked about his mother daily.
Mrs Kinczyk has a fair complexion and long dark hair, she is 5ft 3ins (1.6m) tall and of a slim build, police said.
She was last seen wearing a white T-shirt with a pink motif and white three-quarter length trousers and gold pumps.