  Brief overview of the present status on mixing and CP violation in kaons and
B mesons is given by means of the unitarity triangle. Theoretical predictions
on epsilon'/epsilon are confronted with experimental results. The prospects of
detecting CP violation at high-energy p pbar, p p, e- e+ and mu- mu+ colliders
are discussed in resonant scatterings involving top quarks and/or heavy
scalars. The relevance of the latter for baryogenesis is briefly outlined.
