Hideout in the Sun (1960)

Two robbers infiltrate a nudist camp to seek refuge when their plans to rob a bank take the wrong turn 

Two brothers rob a bank and end up taking a hostage after their getaway plan falls apart. When they discover that their hostage, Dorothy, is a nudist, they force her to take them to a members-only nudist camp to hide out. As the brothers spend more time at the camp, the lines begin to blur, especially when one of them starts to fall for Dorothy, throwing both their plan and their relationship into disarray.