It is shown that in naphthalocyanine films, conductivity occurs due to electron transport along metal nanowires. In an alternating electric field, reversible partial rupture of nanowires may take place. Active resistance for film with partial  nanowire ruptures is frequency dependent and can be more or less than that of film without ruptures. A model for this effect is proposed. The prediction of the response of a system to an external influence simplifies the use of materials for practical applications.