Kathryn, a struggling actress and unfulfilled housewife, becomes involved with her new gardener, Ben. As he gives her the attention and sensitivity she craves, they start to fall for each other. But Ben is not what he seems.
A young botanist relocates to a small desert town to study an invasive plant species. While out on research, she comes to the aid of a downed plane only to find herself taken captive by an inexperienced drug mule who forces her to lead a trek across the sweltering desert to his drop. A local sheriff is drawn into the hunt as his rebellious daughter sets out to find the missing botanist, all the while being pursued by a local drug receiver.