That evening, as they sat down for dinner, John felt a pang of guilt momentarily grip him, but he brushed it aside. He needed to escape to meet his mistress, and tonight was just like any other night in his meticulously crafted routine. As Helen excused herself to the bathroom, John skillfully slipped the sleeping pills into her wine, watching as they dissolved without a trace. By the time she returned, he was all smiles and charming conversation.