Cell Phone (2003)

Yan Shouyi is a TV host who has an affair with Wu Yue (Fan Bingbing), a young and attractive woman working in publishing. Yan diligently erases all text messages and call records between him and Wu on his cellphone before he gets home everyday, in order to avoid detection by his wife Yu Wenjuan (Lu Zhang). One night, after telling Yu that he has a work meeting with Fei Mo (Zhang Guoli),a TV producer and Yan’s superior, Yan rendezvous with Wu and switches off his cellphone. Not being able to reach Yan a while later, Yu calls Fei, who has been in the know of Yan’s affair.
(Source: Wikipedia)