Cell (2009)

Leung likes stealing cell phones from others; Sze likes taking pictures with her cell; Ho doesn't want to be photographed by the cell anymore; Keung is worried that things stored in Yan's cell would be exposed; Yan is worried that she can't get connected to Keung's cell - They all know what they are doing, but not the result of it. The cell is not in the wrong, nor are they.