"She took his coat and hung it up. Then she made the drinks, a strong one for him and a weak one for herself, and soon she was back again in her chair with the sewing, and he was in the other chair." In this moment it makes you wonder what's going to happen now? It makes you impatient.
"'It's probably right under our noses. What do you think Jake?' And in the other room, Marly Malone began to laugh." It's ironic how they say it's right under there noses, because it truly is under their noses while they eat the murder weapon (lamb leg).
"The violence of the crash, the small table overturning, helped to bring her out of the shock. She came out slowly, feeling cold and surprised, and she stood for a few minutes, looking at the body, still holding the piece of meat tightly with both hands." It makes the mood creepy and mysterious. Especially the fact that she killed the one she loved.