Section 13. Whoever, for any length of time, unlawfully detains or attempts to detain, or aids or abets in unlawfully detaining or attempting to detain, or provides or administers or aids or abets in providing or administering any drug or liquor for the purpose of detaining a person in a house of ill fame or other place where prostitution is practiced or allowed, shall be punished by imprisonment in the state prison for not more than five years or in the house of correction for not less than one nor more than two and one half years or by a fine of not less than one hundred nor more than five hundred dollars.