Can She Bake A Cherry Pie?

Emaline has been taking care of her elderly, cranky grandfather for so long, she wonders if she'll ever have a life again. When he demands a sumptuous meal, she obliges, even baking him his favorite pie. It's Johnny Banister's last meal, but the medical examiner finds nothing suspicious. So why does Emaline seek a way to dispose of the flavoring bottle? And why does she worry that Detective Harry Jordan wants more than the pleasure of her company when he asks her to dinner?