Ghajini (2008)

A wealthy entrepreneur, Sanjay Singhania, suffers from short-term memory loss after a brutal attack by Ghajini Dharmatma, a criminal kingpin. Sanjay's only motivation now is to avenge his fiancée, Kalpana, who discovered Ghajini's human trafficking ring and was murdered because of it. To keep track of his mission, he relies on photographs, notes, tattoos all over his body and the support of Sunita, a medical student investigating his case.