During a visit with Nehemiah Jacobs at Orchard Hill retirement home, Kate is surprised when the serene atmosphere turns into a full-fledged drama. Resident Shirley Kraemer, beloved mother-in-law to Copper Mill's mayor, has a severe allergic reaction to a medication. As Kate observes the commotion around the home and prays for the fragile woman, she notices several folks behaving mysteriously behind the scenes. Soon, Kate begins to suspect that Mrs. Kraemer's improper care was not an accident at all. As Kate digs into her latest mystery, she and Paul help mediate between two local blood-drive volunteers--Renee Lambert and Joe tucker--whose philosophies on advertising for such an event contrast to the point of chaos. With the blood drive threatening to collapse and Mrs. Kraemer's health hanging by a thread, can Kate help the mayor's family pinpoint the culprit before it's too late?