This one's a bit of a headache, too many different heavy plot-twisting clichés overlappin...

This one's a bit of a headache, too many different heavy plot-twisting clichés overlapping together to happen to one single protagonist, but without even being connected to one another: secret hidden past, amnesia (but not related to secret hidden past), time-travel (but not related to amnesia nor to hidden past). It's too densely packed with coincidences