A mother-of-two was threatened with having both her hands cut off in front of her young children if she did not cooperate with a gang of robbers.
The woman, in her 30s, was punched, kicked and threatened at her home in Redditch while the two youngsters were in the bath.
Her partner was also attacked.
The gang stole watches, phones, cash and a Volkswagen Golf car after snatching the keys. The Golf was found dumped in Netherton in the early hours of the following day.
Only one of the four men has been caught. Imran Aslam, aged 30, of Buffery Road, Dudley, has been jailed for eight years after admitting two charges of robbery.
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A large tent has been put up around the area while investigations continue.