An elderly care and security system comprises one or more networked lighting luminaire installed in a room, the luminaire comprising: one or more sensors configured to: detect a fall; detect smoke; detect glass break; detect presence of another person in the room while the elderly person is lying in bed; and detect presence of a person while an alarm system is active and detect no presence for a period longer than a predetermined time interval; a lighting unit controlled to adaptively illuminate the room; a wireless bi-directional transceiver, loudspeaker and microphone, configured to be activated automatically for communication with the elderly person, a caregiver or relative; a door locking/unlocking unit with connectivity to an electrical door lock, configured to automatically lock/unlock a door of a safe room for the elderly person; and an alarm activating unit, configured to automatically activate/deactivate an alarm.