迴路中的陌生人 / The Stranger in the Loop

最深層的恐懼，來自於你發現家中並不只有你一個人，但監視器卻顯示你正獨自在笑。 / The deepest fear is discovering you aren't alone at home, while the monitor shows you laughing all by yourself.

Category	Psychological/Technological Horror
Origin	Inspired by the 'Smart Home Glitch' and 'Invisible Guest' urban legends
ScareLevel	4.5/5
Warning	Unexpected movements in smart home sensor logs and echoes in empty rooms.

序幕 / The Prologue

在現代都市中，我們將安全感交付給電子產品。智能鎖、紅外線感應燈、以及全天候運行的網路攝影機。我們以為這些設備是守護者，但事實上，它們只是為我們記錄下了那些本不該被看見的「不協調感」。

In modern cities, we entrust our sense of security to electronic devices. Smart locks, infrared motion sensors, and 24/7 security cameras. We believe these devices are guardians, but in reality, they merely document the 'dissonance' that was never meant to be seen.

恐懼核心 / The Core Terror

林浩是一名典型的都市白領，住在一個位於市中心的高級公寓。為了方便照顧遠在老家的父母，他在客廳和走廊安裝了一套最先進的 AI 智能監控系統。這套系統不僅能偵測動作，還能透過算法分析住戶的行為模式，以提供最優化的家居環境。

Lin Hao was a typical urban white-collar worker, living in a high-end apartment in the city center. To make it easier to look after his elderly parents back home, he installed a state-of-the-art AI smart monitoring system in the living room and hallway. This system not only detected motion but also analyzed the resident's behavior patterns using algorithms to provide an optimized home environment.

起初，一切都很完美。直到兩週前，林浩開始在手機的通知欄中看到奇怪的記錄：「下午 2:15，偵測到客廳有活動」。但那時他正在公司開會。起初他以為是系統 Bug，或者是一隻迷路的小蟲觸發了紅外線感應器。然而，這種「錯誤」變得越來越頻繁，且時間點越來越詭異。有時是凌晨三點，有時是他剛踏入家門的瞬間。

At first, everything was perfect. Until two weeks ago, Lin Hao began seeing strange logs in his phone's notification bar: '2:15 PM, activity detected in the living room.' But at that time, he was in a meeting at the office. Initially, he dismissed it as a system bug or perhaps a stray insect triggering the infrared sensor. However, these 'errors' became more frequent, and the timing grew increasingly eerie. Sometimes it was 3:00 AM, sometimes it happened the very moment he stepped inside his home.

最讓他不安的是，每次他打開雲端回放時，畫面中永遠只有他自己。但畫面中的他，表現得極其怪異。例如，在一段記錄於週二晚上的影片中，他看到自己正坐在沙發上閱讀。然而，影片中的他突然停止閱讀，緩緩地轉頭看向鏡頭，臉上露出一個極其僵硬、嘴角過度上揚的微笑。林浩清楚地記得，那天晚上他一直在睡覺，且從未對著攝影機笑過。

What disturbed him most was that whenever he opened the cloud playback, the footage always showed only him. But the 'him' in the footage behaved extremely strangely. For example, in a clip recorded on Tuesday night, he saw himself sitting on the sofa reading. Suddenly, his onscreen self stopped reading, slowly turned toward the camera, and wore a stiff, unnaturally wide smile. Lin Hao remembered vividly that he had been asleep all that night and had never smiled at the camera.

恐懼在日常的裂縫中滋長。他開始注意到家中的細微變化：牙刷上的水滴位置被移動了，原本關掉的燈在他轉身後悄悄亮起。最可怕的是，他發現監控系統的 AI 標記功能開始出錯。在實時監控畫面中，系統會在林浩的肩膀旁邊標記出一個綠色的方框，寫著「人類：1」，但那個方框對應的空間明明是空的。

Fear grew within the cracks of his daily routine. He began to notice subtle changes in his home: water droplets on his toothbrush had shifted, and lights he had turned off would quietly flicker on after he turned away. Most terrifying of all, he discovered that the system's AI tagging function was malfunctioning. In the real-time feed, the system would place a green bounding box next to Lin Hao's shoulder, labeling it 'Human: 1,' even though the space within that box was completely empty.

昨晚，林浩決定徹夜不眠，試圖捕捉那個「東西」。他坐在客廳的地板上，對著手機螢幕。凌晨兩點，手機突然震動，推送了一條通知：「偵測到非法入侵」。他猛地抬頭看向走廊，什麼也沒有。但當他低頭看向手機畫面時，他看見螢幕裡的自己正對著他揮手，而他的身體後方，一個蒼白、沒有五官的形體正緩緩地將手搭在他的肩膀上。在那一刻，林浩感覺到自己的肩膀確實沉重了起來，一股冰冷的寒意滲入骨髓。

Last night, Lin Hao decided to stay awake all night, attempting to catch the 'thing.' He sat on the living room floor, staring at his phone screen. At 2:00 AM, the phone suddenly vibrated with a notification: 'Unauthorized entry detected.' He jerked his head up to look at the hallway; there was nothing. But when he looked back down at the phone screen, he saw his onscreen self waving at him, and behind his body, a pale, featureless entity was slowly resting its hand on his shoulder. In that instant, Lin Hao felt a real, heavy weight press down on his shoulder, and a bone-chilling cold seeped into his marrow.

他驚恐地將手機摔在地上，螢幕碎裂。但在碎片反射的光芒中，他看到那個沒有臉的生物已經不再透過螢幕出現，而是就站在他的正後方，正對著他的耳邊，發出了一種像是指甲刮擦金屬的低語：「你終於注意到我了」。

Terrified, he smashed the phone onto the floor, cracking the screen. But in the reflected light of the shards, he saw that the faceless creature was no longer appearing through a screen; it was standing directly behind him, whispering into his ear in a sound like nails scratching metal: 'You finally noticed me.'

都市傳說背景 / Urban Legend Trivia

這個故事靈感來自於「智能家居幽靈」的現代都市傳說。許多使用者報告過，他們的寵物或掃地機器人會對著空無一人的角落發出警告，或者智能監控系統在深夜捕捉到不屬於任何人的熱感信號。生活中的警告徵兆：如果你發現家中的智能設備在沒有指令的情況下自行運作，或者在監控回放中發現自己的行為與記憶不符，請立即離開該空間，因為這意味著你的「私人空間」已被某種無法被肉眼捕捉的意識所標記。

This story is inspired by the modern urban legend of 'Smart Home Ghosts.' Many users have reported their pets or robotic vacuums reacting aggressively to empty corners, or smart monitoring systems capturing heat signatures in the dead of night where no one should be. Warning signs in real life: If you find your smart devices operating without commands, or if your surveillance playback shows behavior inconsistent with your memory, leave the space immediately. It means your 'private space' has been marked by a consciousness that cannot be captured by the human eye.

Don't look behind you. | 不要回頭看。

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