Massage Tantei Joe Episode 7

Ai, a popular hostess, asks for a massage at her house. Madam Eco usually welcomes extra work, but Joe is told by Madam Eco to come straight home after the massage. Despite the warning, Joe agrees for an extension, when Ai's loan shark boyfriend comes home. He's an extremely jealous man with a short temper, and threatens to kill Joe with a knife. What will happen to Joe? (Source: Amazon)