  We develop a method to measure the CKM angle $\gamma$ without hadronic
uncertainties from the analysis of $B^\pm \to K^\pm D^0$ and $K^\pm \D0bar$
followed by singly Cabibbo-suppressed $D$ decays to non CP-eigenstates, such as
$K^\pm K^{*\mp}$. This method utilizes the interference between $b\to c\bar u
s$ and $b\to u\bar c s$ decays, and we point out several attractive features of
it. All the modes that need to be measured for this method are accessible in
the present data.
