Five Sentence Fiction: "Eater"

"I have a family," he says, trying to keep the quiver of fear out of his voice.

She smiles, walks slowly around the cage, dragging her fingers from bar to bar, and finally says, "You're not a very good liar." She slips the key into the lock, and the heavy door swings open. He doesn't rush her; he backs away.

He has seen her feed once already today.