One cabin. Two strangers with the same name. A vacation mix-up from hell. Riley Wilson is a workaholic. She’s never been on vacation, much less taken a sick day. When her terminally ill mother hands her a cruise ticket with the disclaimer: “See the world, fall in love, and sprinkle my ashes at sea, please,” Riley must set sail. But what she doesn’t know is her cabin has been double-booked. Riley Wilson is in the middle of a messy divorce. He’s miserable, angry, and stuck in a rut he can’t seem to get out of. When his fed-up sister urges him to go on a cruise to enjoy a bachelor lifestyle, he agrees to set sail. But what he doesn’t expect is to find a woman in his cabin, claiming it’s hers. Both Rileys reluctantly agree to share accommodations, but sharing isn’t easy when you're hiding your mother’s urn, your grief, and your underwear from your moody, nosey roommate. Can they rock the boat with new love and heal their broken hearts?