Heartbeat (Don Johnson, 1986)

'I've been standing by the fire, I just can't feel the heat.' Normal Sudoku rules apply. ARROWS- Numbers on arrows sum to the number in the arrow's circle. Numbers may repeat on arrows, if other rules allow. THERMOMETERS- Numbers on thermometers increase from the bulb end. DUTCH WHISPERS- Numbers on the red line (heartbeat) are at least 4 apart from their neighbors on the line. KILLER CAGE- Numbers in cages sum to the number in the top left corner of the cage.