I Watched Their Lies Collapse

Claire Wells goes to see her husband Adrian Carter, having just learned that his secretary, Sonia Blake, tested positive for HIV. She intends to warn him, but instead overhears suggestive sounds from his office, confirming that Adrian has long been cheating with Sonia. To his shock, Claire then produces a medical report and calmly smiles, "But as I recall, it's Sonia who actually has HIV."