Ensuring the safety of life and property through the deployment of high-quality CCTV cameras has become indispensable in our modern world. Manual monitoring of every moment is not feasible, and the unpredictable nature of human behavior makes distinguishing between suspicious and normal activities a formidable challenge. In this research, we introduce a novel approach utilizing Convolutional Neural Networks (CNN) to discern between suspicious and routine activities within an environment. Our proposed system is designed to automatically alert relevant authorities upon detecting potentially suspicious behavior. The effectiveness of any suspicious activity detection system hinges on several critical factors, including the quality of training data, the architecture of the Machine Learning model, and the operational environment. To maintain the system's accuracy and keep it adaptive to new and evolving threats, continuous monitoring, regular updates, and ongoing improvement are imperative. Our work underscores the importance of robust data sources and the careful design of CNN-based models to ensure the system's reliability in real-world applications. This research not only addresses the pressing need for automated surveillance but also emphasizes the significance of staying current and vigilant in the ever- changing landscape of safety and security. KeyWords: CNN, Object Detection, Anomaly, Threat, Hyperparameter Tunning.