Monitoring camera system and monitoring method

A monitoring method which uses a monitoring camera system including at least one camera and a master device capable of communicating with the camera and a mobile communication terminal having a display,

• wherein the camera detects movement of a person at a first timing in an imaging area and transmits a predetermined notification to the master device at a second timing after the first timing,
• wherein the master device transmits an image request for requesting a first captured image captured at the first timing and a second captured image captured at the second timing by the camera from the camera, to the camera, based on the predetermined notification transmitted from the camera,
• wherein the camera transmits the first captured image and the second captured image in association with each other to the master device based on the image request transmitted from the master device, and
• wherein the master device transmits the first captured image and the second captured image transmitted from the camera in association with each other to the mobile communication terminal so as to be displayed on the display.