播出時間：2012.10/31(三)23:10播出(次日下午14:00重播)
頻道：GOOD TV (ch15)好消息電視台
感動指數★★★★★
情節指數★★★★★
思索指數★★★★★
（感謝劇評人劉鴻輝提供中文內容相關資料）
角色：
Duncan：鄧肯
Lonnie：隆尼
Gregory：葛格里
Johnny：強尼
大意：
聖經有云：「因我們並不是與屬血氣的爭戰。乃是與那些執政的、掌權的、管轄這幽暗世界的，以及天空屬靈氣的惡魔爭戰。」（以弗所書6：12）過去幾季中，＜與天使有約＞有數集以屬靈爭戰為主題的故事。如
第一季之『善惡之爭』、第二季之『挑撥離間』、『陰魂不散』與第五季『魔鬼交易』等。本集再次探討相同主題，內容更加驚心動魄，令人觀而渾身發麻，毛骨悚然且不寒而慓！一如聖經一針見血的警告：「你們的仇敵魔鬼，如同吼叫的獅子。遍地遊行，尋找可吞吃的人！」（彼得前書5：8）童年無知懵懂時與同伴縱火燒屋，引致爾後引鬼上身，成了惡魔手中的傀儡，被摧殘地體無完膚，求生不得，求死不能。在黑暗中跌撞摸索，不得出路與自由。所幸邪終不勝正！在上帝面前，惡魔無所遁形！主耶穌基督是真光（約翰一書1：5），在祂毫無黑暗！祂來使被擄的得釋放（路加福音4：18），使被壓迫的得自由，並差遣天使一路伴隨保護，以上帝聖潔的真光驅散黑暗，引人重返祂慈愛的懷抱！
值得一提的是，以『變形金剛』與『鷹眼』等好萊塢電影知名的演員席亞李畢夫，在本劇中也參與演出。當時尚且年幼的他，已展現十足的演藝才華，未來的成功已可預見。
隆尼與鄧肯自幼即是好友，然而成長過程卻有天壤之別。鄧肯知書達禮，斯文謙備；隆尼卻因家庭因素而心內充滿苦毒，行為放蕩不羈。萬聖節當夜，隆尼禁不住一群損友唆使，縱火燒了一個老人的小屋。揮之不去的愧咎，促使他處處尋求安寧，因此使無孔不入的邪惡有機可乘，而遭邪靈葛格里附身。已為醫師的鄧肯認為隆尼罹患人格分裂，亟欲幫助他卻不得其法，情況逐漸惡化，蒙妮卡、黛絲與安德烈這三位正氣凜然的天使，受派至醫院與邪靈葛格里正面交鋒，逐漸抽絲綠繭，追溯隆尼受鬼附的過程與原因，並出言鼓勵飽受蹂躪摧殘的隆尼。時已漸入深夜，一場搶救靈魂、驚心動魄的正邪之戰即將揭開序幕……
Guest Cast:
Lonnie/Gregory Titus Welliver
Duncan Casey Biggs
Emily Tara Strong
Lonnie at 10 Scott Terra
Duncan at 10 Reiley McClendon
Johnny Shia LeBeouf
Lonnie at 17 Chad Doreck
Duncan at 17 Donnie Biggs
On Halloween night all angels have their hands full, and this night is no different for Monica, Tess, and Andrew, who attend to a spiritual battle at Salt Lake City's Mercy Hospital. The ambulance brings in Lonnie, a deranged and suicidal homeless man. Lonnie frequently visits the ER and Duncan, the head of the ER and Lonnie's best friend from childhood, has diagnosed him with Multiple Personality Disorder. Andrew arrives to comfort Lonnie, but suddenly lucid, Lonnie claims to be "Gregory" and recognizes Andrew as an angel! Andrew looks to Tess for some insight and she relates Lonnie's history: Many years ago, when Tess was Lonnie and Duncan's Sunday School Teacher, she taught them that faith in God is like a mustard seed -- though little, it can grow to be very large. Despite an abusive home life, Lonnie struggled to have faith, and cherished the mustard seed that Tess gave him. One Halloween though, a prank gone awry resulted in Lonnie burning a house down. Monica then continues the history: Lonnie's guilt and shame over this event initiated a downward spiral that ultimately resulted in Lonnie becoming involved in drugs and, then, the occult. When "Gregory" claims to have power over Lonnie's soul, Andrew finally understands -- Lonnie is possessed by a demon! "Gregory" claims that Lonnie's soul is fading and that he will soon be completely possessed. In a moment of clarity Lonnie calls out to Duncan for help, and clutches something in his fist. It is the mustard seed he has kept since childhood. But when an orderly accidentally crushes the seed, Lonnie gives a final cry and "Gregory" says he has full possession. Tess appeals to Duncan to help his old friend, telling him about Lonnie's spiritual condition. They corner "Gregory" in the boiler room where he is waiting for Lonnie's body to die. Rather than give up hope for Lonnie, Monica pleads with him to ask God for help. "Gregory" howls in pain. Duncan, frightened, runs from the room. Tess follows him and reveals herself to be an angel, and tells him that Lonnie needs his help now; he needs someone to stand beside him who has a strong faith. In his office, Duncan finds his old mustard seed and returns to the boiler room, telling Lonnie that the seed is only a symbol of faith, real faith comes from the heart. Duncan's presence gives Lonnie the strength to cry out to God, asking for forgiveness and help. "Gregory" screams in pain, finally defeated. Redeemed, Lonnie wonders at the realization that, through it all, God never gave up on him.
