To aspiring writer Arthur Conway, the job offer from a small bank proves a welcome haven - especially with his mounting bills. But Alastair - his cousin who works at the same bank - sees Arthur's arrival as an opportunity to unlock the fortunes of the bank while the manager is away. When his scheme fails, a new manager takes over with a bold plan to transform the bank. After Arthur falls in love with Jenny, the young consultant brought in - he faces stiff competition from her pet dog, Ben. Spurned by his love in a jealous misunderstanding, can Arthur foil an attempt to rob the bank - and win her love?