Outdoors they'd probably survive due to rain and dew. The plant does grow in the wild, after all. However they might not be as healthy as if you took better car of them. Hence you would get less of a harvest. Or they could die... if there is a long time without rain.

Inside, I would think they would die unless you develop some sort of watering system. That should not be hard to do inside though. You can get watering timers and that sort of thing from gardening shops. That is still dangerous though... you have to leave water running, and if something springs a leak, someone notices the flooding, and the police are called... they might discover your grow while trying to stop the leak.

Worst case just poke small holes in the bottom of a water jug with a needle so it drips water very, very slowly. You don't want it coming out fast at all. Then set it next to the plant. A month is a long time... but it might work.