A ghost at St. Vincent's College manifests yearly at the Virgin Tree on Valentine's Day, turning a symbol of yearning into terror and compelling a para-physicist to investigate its sinister origins. 　　每年情人節(jié)，圣文森特學院都會出現一個幽靈，在圣母樹現身。它將象征相思的圣母樹化作恐懼之源，迫使一位超自然物理學家著手調查其邪惡的起源。