Mary wasn't the only one keenly watching Rita as she waited for the drug to take control but Ian was equally observing, though he made sure to keep his line of sight very much coordinated to prevent the crowd from knowing anything, and in fact, in just a few minutes the drug immediately started showing signs of kicking in.
Rita who was busy trying to decipher and plan immediately started feeling a little bit weird, and the more she tried observing her glass of champagne, the more she felt like something was wrong somewhere, her heart beat immediately speeding up and as if something was speaking to her, she immediately lifted her line of sight and she came face to face with Mary's eyes, eyes that seemed to taunt and mock her, making her feel like she was about to lose control of herself.