We received a call saying that my father-in-law had been given a terminal diagnosis, and my husband and I decided to return to my husband's parents' home. My father-in-law has always been a selfish person who spends his days gambling and womanizing, and he is estranged from my husband. As soon as he saw our faces, he tearfully begged us to be guarantors for his expensive medical expenses. Unable to bear seeing my exhausted father-in-law, I persuaded my reluctant husband to sign as a guarantor. Little did I know that it was a contract that my father-in-law had tampered with... My husband was made a guarantor for the debt without knowing it, and my father-in-law threatened me, who was confused, saying, "If you don't want your husband to be burdened with debt, take care of me..."